CVE-2026-46174

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46174", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.103Z", "datePublished": "2026-05-28T09:36:28.703Z", "dateUpdated": "2026-11-10T12:47:23.454Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:30:12.168Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corruption this way."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The flaw is in the CPU's op cache and requires executing instructions on the affected core to drive improper resource sharing; it is not reachable over a network. Triggering it needs local code execution on the machine.\nAC:L - An attacker who can co-schedule code on SMT siblings of an affected Zen2 core controls both sides of the shared op-cache contention and can reliably drive the improper-isolation condition. Following the higher-severity rule, this is Low.\nPR:L - Triggering the op-cache resource sharing only requires the ability to run code (an unprivileged local user or a guest VM tenant); no root or admin capability is needed. It does, however, require at least some local execution access, so not None.\nUI:N - The attacker's own executing code populates and contends for the op cache; no victim action is required.\nS:C - The bug is an isolation failure of a microarchitectural resource shared across SMT threads, so instruction corruption can cross from the attacker's context into a different security authority (another VM/tenant or the host kernel), impacting resources beyond the attacking component's scope.\nC:H - Improper isolation of a shared op-cache resource is an information-disclosure vector across contexts, and the resulting instruction corruption can be leveraged to read memory belonging to another security domain.\nI:H - The defining impact is \"instruction corruption\" \u2014 the CPU executes corrupted/wrong instructions in a victim context, which is a direct, severe integrity violation enabling control-flow and data corruption across the isolation boundary.\nA:H - Instruction corruption causes incorrect execution, crashes, and hangs in the affected (potentially cross-context) code, resulting in high availability impact."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "versions": [{"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1e23b30a80b14e5764657401ee2cca030525ae8e", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "f5bc3aef7df46eaaf423d7413ab8833f704ae576", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "251497955f2314cd39d43191e81c6151dead4c7b", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ff6fc65b3bf73acc5ee71919154d830ad5431362", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "9109489cc8c34e50d15575a3d1ff82af586bc1aa", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "28f5ed477eef166d678d6966762cbc1de9b4f436", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1cd85a19748b2407830376a5cbae5c0f126016e5", "status": "affected", "versionType": "git"}, {"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "c21b90f77687075115d989e53a8ec5e2bb427ab1", "status": "affected", "versionType": "git"}, {"version": "5abd1583e06b3963e5c9d915760367de86808b78", "status": "affected", "versionType": "git"}, {"version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686", "status": "affected", "versionType": "git"}, {"version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4", "status": "affected", "versionType": "git"}, {"version": "3.16.58", "lessThan": "3.17", "status": "affected", "versionType": "semver"}, {"version": "4.4.144", "lessThan": "4.5", "status": "affected", "versionType": "semver"}, {"version": "4.9.102", "lessThan": "4.10", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "versions": [{"version": "4.14", "status": "affected"}, {"version": "0", "lessThan": "4.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.256", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.207", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.173", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.139", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.10.256"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "5.15.207"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.1.173"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.6.139"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.144"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.102"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e"}, {"url": "https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576"}, {"url": "https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b"}, {"url": "https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362"}, {"url": "https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa"}, {"url": "https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436"}, {"url": "https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5"}, {"url": "https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1"}], "title": "x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-11-10T12:47:23.454Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46174", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:20:43.490528Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:36:53.596Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "x_adpType": "supplier", "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-11-10T12:47:23.454Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46174", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:20:43.490528Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:20:44.323Z"}}], "cna": {"title": "x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The flaw is in the CPU's op cache and requires executing instructions on the affected core to drive improper resource sharing; it is not reachable over a network. Triggering it needs local code execution on the machine.\nAC:L - An attacker who can co-schedule code on SMT siblings of an affected Zen2 core controls both sides of the shared op-cache contention and can reliably drive the improper-isolation condition. Following the higher-severity rule, this is Low.\nPR:L - Triggering the op-cache resource sharing only requires the ability to run code (an unprivileged local user or a guest VM tenant); no root or admin capability is needed. It does, however, require at least some local execution access, so not None.\nUI:N - The attacker's own executing code populates and contends for the op cache; no victim action is required.\nS:C - The bug is an isolation failure of a microarchitectural resource shared across SMT threads, so instruction corruption can cross from the attacker's context into a different security authority (another VM/tenant or the host kernel), impacting resources beyond the attacking component's scope.\nC:H - Improper isolation of a shared op-cache resource is an information-disclosure vector across contexts, and the resulting instruction corruption can be leveraged to read memory belonging to another security domain.\nI:H - The defining impact is \"instruction corruption\" \u2014 the CPU executes corrupted/wrong instructions in a victim context, which is a direct, severe integrity violation enabling control-flow and data corruption across the isolation boundary.\nA:H - Instruction corruption causes incorrect execution, crashes, and hangs in the affected (potentially cross-context) code, resulting in high availability impact."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1e23b30a80b14e5764657401ee2cca030525ae8e", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "f5bc3aef7df46eaaf423d7413ab8833f704ae576", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "251497955f2314cd39d43191e81c6151dead4c7b", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ff6fc65b3bf73acc5ee71919154d830ad5431362", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "9109489cc8c34e50d15575a3d1ff82af586bc1aa", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "28f5ed477eef166d678d6966762cbc1de9b4f436", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1cd85a19748b2407830376a5cbae5c0f126016e5", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "c21b90f77687075115d989e53a8ec5e2bb427ab1", "versionType": "git"}, {"status": "affected", "version": "5abd1583e06b3963e5c9d915760367de86808b78", "versionType": "git"}, {"status": "affected", "version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686", "versionType": "git"}, {"status": "affected", "version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4", "versionType": "git"}, {"status": "affected", "version": "3.16.58", "lessThan": "3.17", "versionType": "semver"}, {"status": "affected", "version": "4.4.144", "lessThan": "4.5", "versionType": "semver"}, {"status": "affected", "version": "4.9.102", "lessThan": "4.10", "versionType": "semver"}], "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.14"}, {"status": "unaffected", "version": "0", "lessThan": "4.14", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.256", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.207", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.173", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.139", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.88", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.30", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.7", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e"}, {"url": "https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576"}, {"url": "https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b"}, {"url": "https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362"}, {"url": "https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa"}, {"url": "https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436"}, {"url": "https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5"}, {"url": "https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corruption this way."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.256", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.207", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.173", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.139", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.88", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.30", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.7", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "4.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "3.16.58"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.4.144"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.9.102"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:30:12.168Z"}}}, "cveMetadata": {"cveId": "CVE-2026-46174", "state": "PUBLISHED", "dateUpdated": "2026-11-10T12:47:23.454Z", "dateReserved": "2026-05-13T15:03:33.103Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-05-28T09:36:28.703Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1e23b30a80b14e5764657401ee2cca030525ae8e", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "f5bc3aef7df46eaaf423d7413ab8833f704ae576", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "251497955f2314cd39d43191e81c6151dead4c7b", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "ff6fc65b3bf73acc5ee71919154d830ad5431362", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "9109489cc8c34e50d15575a3d1ff82af586bc1aa", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "28f5ed477eef166d678d6966762cbc1de9b4f436", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "1cd85a19748b2407830376a5cbae5c0f126016e5", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"lessThan": "c21b90f77687075115d989e53a8ec5e2bb427ab1", "status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "versionType": "git"}, {"status": "affected", "version": "5abd1583e06b3963e5c9d915760367de86808b78", "versionType": "git"}, {"status": "affected", "version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686", "versionType": "git"}, {"status": "affected", "version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4", "versionType": "git"}, {"lessThan": "3.17", "status": "affected", "version": "3.16.58", "versionType": "semver"}, {"lessThan": "4.5", "status": "affected", "version": "4.4.144", "versionType": "semver"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.102", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/x86/include/asm/msr-index.h", "arch/x86/kernel/cpu/amd.c", "tools/arch/x86/include/asm/msr-index.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.14"}, {"lessThan": "4.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.256", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.207", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.173", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.139", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.88", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.30", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.5", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.5", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.5", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.5", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.6", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.5", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)", "vendor": "Siemens", "versions": [{"lessThan": "*", "status": "affected", "version": "V3.1.7", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C1981AEB-4867-4AB9-8168-BAB8D6567131", "versionEndExcluding": "3.17", "versionStartIncluding": "3.16.58", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7E307C3F-E33B-4061-B210-F031D88F5C6E", "versionEndExcluding": "4.5", "versionStartIncluding": "4.4.144", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "96373A7C-EBC6-4D06-941C-481E7B24579D", "versionEndExcluding": "4.10", "versionStartIncluding": "4.9.102", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E61C3493-718B-4877-B220-593126383CC4", "versionEndExcluding": "5.10.256", "versionStartIncluding": "4.14.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9255E454-FB3D-46B1-9414-3EA5B65EEEA2", "versionEndExcluding": "5.15.207", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2AD4A50D-D0DC-4970-8942-AC086C66B4CA", "versionEndExcluding": "6.1.173", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "62B22414-1CA8-4470-95F1-F9D5C1DFB1DC", "versionEndExcluding": "6.6.139", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4", "versionEndExcluding": "6.12.88", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B", "versionEndExcluding": "6.18.30", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E", "versionEndExcluding": "7.0.7", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:-:*:*:*:*:*:*", "matchCriteriaId": "7875AA30-1F6F-470C-A52D-ECBD6663CEC5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc2:*:*:*:*:*:*", "matchCriteriaId": "B483DA9A-D449-48DE-9CA2-CEA23FD0B202", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc3:*:*:*:*:*:*", "matchCriteriaId": "DEF29F06-4FF7-4FE6-B66D-9D758B182CF3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc4:*:*:*:*:*:*", "matchCriteriaId": "17941A19-6A3D-477F-BC6A-972D7F815FDD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc5:*:*:*:*:*:*", "matchCriteriaId": "4C9B8FA6-754F-42F5-98BC-410AF7DB9F4C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc6:*:*:*:*:*:*", "matchCriteriaId": "EC8F8565-B401-4F3C-B423-51F371DCB908", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc7:*:*:*:*:*:*", "matchCriteriaId": "C834B5F2-810F-4291-8E1F-1B32635E08F3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:rc8:*:*:*:*:*:*", "matchCriteriaId": "BB4A96BC-72CC-4EF1-916C-9ED7177C196E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corruption this way."}], "id": "CVE-2026-46174", "lastModified": "2026-11-10T13:19:16.707", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46174", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:20:43.490528Z", "version": "2.0.3"}}]}, "published": "2026-05-28T10:16:33.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-862"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache", "id": "2482549", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482549"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-653", "details": ["A flaw was found in the Linux kernel, specifically within the x86/CPU/AMD Zen2's op cache. This vulnerability arises from improper isolation of shared resources, which can lead to instruction corruption. The consequence of this flaw is that it may cause unexpected behavior or instability within the system."], "name": "CVE-2026-46174", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46174\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46174\nhttps://lore.kernel.org/linux-cve-announce/2026052828-CVE-2026-46174-e399@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1e23b30a80b14e5764657401ee2cca030525ae8e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,f5bc3aef7df46eaaf423d7413ab8833f704ae576)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,251497955f2314cd39d43191e81c6151dead4c7b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ff6fc65b3bf73acc5ee71919154d830ad5431362)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,9109489cc8c34e50d15575a3d1ff82af586bc1aa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,28f5ed477eef166d678d6966762cbc1de9b4f436)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1cd85a19748b2407830376a5cbae5c0f126016e5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,c21b90f77687075115d989e53a8ec5e2bb427ab1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.10.256)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.15.207)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.1.173)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.6.139)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.88)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.30)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,7.0.7)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.256,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.207,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.173,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.139,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.88,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.30,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0.7,7.0.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-28T13:30:15.508243+00:00", "updated": "2026-10-23T01:30:13.891419+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}