CVE-2026-53000

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53000", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.377Z", "datePublished": "2026-06-24T16:29:12.635Z", "dateUpdated": "2026-10-30T12:26:25.872Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:26:25.872Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nat: use kfree_rcu to release ops\n\nFlorian Westphal says:\n\n\"Historically this is not an issue, even for normal base hooks: the data\npath doesn't use the original nf_hook_ops that are used to register the\ncallbacks.\n\nHowever, in v5.14 I added the ability to dump the active netfilter\nhooks from userspace.\n\nThis code will peek back into the nf_hook_ops that are available\nat the tail of the pointer-array blob used by the datapath.\n\nThe nat hooks are special, because they are called indirectly from\nthe central nat dispatcher hook. They are currently invisible to\nthe nfnl hook dump subsystem though.\n\nBut once that changes the nat ops structures have to be deferred too.\"\n\nUpdate nf_nat_register_fn() to deal with partial exposition of the hooks\nfrom error path which can be also an issue for nfnetlink_hook."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is reached through local netfilter/nfnetlink operations, including hook dumps and NAT hook registration/unregistration via netlink or xtables control paths. Remote packets may traverse NAT hooks, but the unsafe freed nf_hook_ops metadata is exposed through local control-plane operations.\nAC:L - The relevant race is between hook dumping and NAT hook teardown/error unwind, and an attacker with netfilter control can drive both sides concurrently. There are no required conditions outside the attacker\u2019s influence beyond normal scheduling.\nPR:L - The paths require CAP_NET_ADMIN in the target network namespace. Netfilter/nftables operations are reachable by an unprivileged local user through user and network namespaces, so this is Low rather than High.\nUI:N - No victim action is required after the attacker has local execution. The attacker can issue the netlink/xtables operations directly.\nS:U - The impact is within the same kernel security authority and represents a standard local kernel memory-safety issue. It does not cross a VM, IOMMU, or similar separate security boundary.\nC:H - This is a use-after-free of kernel heap objects referenced by RCU-visible hook metadata. Reclaiming the freed object can drive kernel reads through attacker-influenced nf_hook_ops fields, making high confidentiality impact defensible.\nI:H - A kernel use-after-free is a memory corruption primitive and may be leveraged beyond a crash with heap grooming. Following the higher-severity rule for UAFs, arbitrary modification or code execution is defensible.\nA:H - The stale hook metadata can be dereferenced after free in kernel context. At minimum this can cause an oops/panic, so availability impact is High."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "versions": [{"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529", "status": "affected", "versionType": "git"}, {"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "ede973d62d26d9c550269af05366ab9e30fc92ee", "status": "affected", "versionType": "git"}, {"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "050f98e56782b14677c5bae50800e60775bbf6bb", "status": "affected", "versionType": "git"}, {"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "32fdd2e38e7435a368d88f5977a7d6585ebc8b0e", "status": "affected", "versionType": "git"}, {"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "3c7511f38ab511b791196b13ae48bf4973bf7dfd", "status": "affected", "versionType": "git"}, {"version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "6eda0d771f94267f73f57c94630aa47e90957915", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "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": "5.14", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529"}, {"url": "https://git.kernel.org/stable/c/ede973d62d26d9c550269af05366ab9e30fc92ee"}, {"url": "https://git.kernel.org/stable/c/050f98e56782b14677c5bae50800e60775bbf6bb"}, {"url": "https://git.kernel.org/stable/c/32fdd2e38e7435a368d88f5977a7d6585ebc8b0e"}, {"url": "https://git.kernel.org/stable/c/3c7511f38ab511b791196b13ae48bf4973bf7dfd"}, {"url": "https://git.kernel.org/stable/c/6eda0d771f94267f73f57c94630aa47e90957915"}], "title": "netfilter: nat: use kfree_rcu to release ops", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"affected": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.12.0-55.98.1.el10_0", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9", "cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:5.14.0-687.45.1.el9_8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:5.14.0-570.141.1.el9_6", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:6"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}], "datePublic": "2026-06-24T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A flaw was found in the Linux kernel's netfilter component, specifically within the Network Address Translation (NAT) subsystem. This vulnerability involves improper memory management when releasing network filter operation structures. This could potentially allow an attacker to cause a system crash, leading to a Denial of Service (DoS), or to gain unauthorized access to sensitive information due to the partial exposure of internal hook data during error handling."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-763", "description": "Release of Invalid Pointer or Reference", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-53000"}, {"name": "RHBZ#2492273", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492273"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53000.json"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:55445"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:68100"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:67720"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:64808"}], "solutions": [{"lang": "en", "value": "RHSA-2026:55445: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)"}, {"lang": "en", "value": "RHSA-2026:68100: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4), Red Hat Enterprise Linux Real Time E4S (v.9.4), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)"}, {"lang": "en", "value": "RHSA-2026:67720: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)"}, {"lang": "en", "value": "RHSA-2026:64808: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"}], "timeline": [{"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Made public."}], "title": "kernel: netfilter: nat: use kfree_rcu to release ops", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-17T12:04:39.036Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53000", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:24:26.886742Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-763", "description": "CWE-763 Release of Invalid Pointer or Reference"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:47:12.990Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "kernel: netfilter: nat: use kfree_rcu to release ops", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:6.12.0-55.98.1.el10_0", "lessThan": "*", "versionType": "rpm"}], "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9", "cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:5.14.0-687.45.1.el9_8", "lessThan": "*", "versionType": "rpm"}], "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:5.14.0-570.141.1.el9_6", "lessThan": "*", "versionType": "rpm"}], "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "kernel-rt", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "kernel", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "kernel-rt", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "kernel-rt", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Made public."}], "solutions": [{"lang": "en", "value": "RHSA-2026:55445: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)"}, {"lang": "en", "value": "RHSA-2026:68100: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4), Red Hat Enterprise Linux Real Time E4S (v.9.4), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)"}, {"lang": "en", "value": "RHSA-2026:67720: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)"}, {"lang": "en", "value": "RHSA-2026:64808: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"}], "x_adpType": "supplier", "datePublic": "2026-06-24T00:00:00.000Z", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-53000", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492273", "name": "RHBZ#2492273", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53000.json", "tags": ["x_sadp-csaf-vex"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:55445", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:68100", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:67720", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:64808", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}], "x_generator": {"engine": "sadp-cli 1.0.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in the Linux kernel's netfilter component, specifically within the Network Address Translation (NAT) subsystem. This vulnerability involves improper memory management when releasing network filter operation structures. This could potentially allow an attacker to cause a system crash, leading to a Denial of Service (DoS), or to gain unauthorized access to sensitive information due to the partial exposure of internal hook data during error handling."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-763", "description": "Release of Invalid Pointer or Reference"}]}], "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-17T12:04:39.036Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53000", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:24:26.886742Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-763", "description": "CWE-763 Release of Invalid Pointer or Reference"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:24:27.447Z"}}], "cna": {"title": "netfilter: nat: use kfree_rcu to release ops", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is reached through local netfilter/nfnetlink operations, including hook dumps and NAT hook registration/unregistration via netlink or xtables control paths. Remote packets may traverse NAT hooks, but the unsafe freed nf_hook_ops metadata is exposed through local control-plane operations.\nAC:L - The relevant race is between hook dumping and NAT hook teardown/error unwind, and an attacker with netfilter control can drive both sides concurrently. There are no required conditions outside the attacker\u2019s influence beyond normal scheduling.\nPR:L - The paths require CAP_NET_ADMIN in the target network namespace. Netfilter/nftables operations are reachable by an unprivileged local user through user and network namespaces, so this is Low rather than High.\nUI:N - No victim action is required after the attacker has local execution. The attacker can issue the netlink/xtables operations directly.\nS:U - The impact is within the same kernel security authority and represents a standard local kernel memory-safety issue. It does not cross a VM, IOMMU, or similar separate security boundary.\nC:H - This is a use-after-free of kernel heap objects referenced by RCU-visible hook metadata. Reclaiming the freed object can drive kernel reads through attacker-influenced nf_hook_ops fields, making high confidentiality impact defensible.\nI:H - A kernel use-after-free is a memory corruption primitive and may be leveraged beyond a crash with heap grooming. Following the higher-severity rule for UAFs, arbitrary modification or code execution is defensible.\nA:H - The stale hook metadata can be dereferenced after free in kernel context. At minimum this can cause an oops/panic, so availability impact is High."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529", "versionType": "git"}, {"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "ede973d62d26d9c550269af05366ab9e30fc92ee", "versionType": "git"}, {"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "050f98e56782b14677c5bae50800e60775bbf6bb", "versionType": "git"}, {"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "32fdd2e38e7435a368d88f5977a7d6585ebc8b0e", "versionType": "git"}, {"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "3c7511f38ab511b791196b13ae48bf4973bf7dfd", "versionType": "git"}, {"status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "lessThan": "6eda0d771f94267f73f57c94630aa47e90957915", "versionType": "git"}], "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"status": "unaffected", "version": "0", "lessThan": "5.14", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.114", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.33", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.10", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529"}, {"url": "https://git.kernel.org/stable/c/ede973d62d26d9c550269af05366ab9e30fc92ee"}, {"url": "https://git.kernel.org/stable/c/050f98e56782b14677c5bae50800e60775bbf6bb"}, {"url": "https://git.kernel.org/stable/c/32fdd2e38e7435a368d88f5977a7d6585ebc8b0e"}, {"url": "https://git.kernel.org/stable/c/3c7511f38ab511b791196b13ae48bf4973bf7dfd"}, {"url": "https://git.kernel.org/stable/c/6eda0d771f94267f73f57c94630aa47e90957915"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nat: use kfree_rcu to release ops\n\nFlorian Westphal says:\n\n\"Historically this is not an issue, even for normal base hooks: the data\npath doesn't use the original nf_hook_ops that are used to register the\ncallbacks.\n\nHowever, in v5.14 I added the ability to dump the active netfilter\nhooks from userspace.\n\nThis code will peek back into the nf_hook_ops that are available\nat the tail of the pointer-array blob used by the datapath.\n\nThe nat hooks are special, because they are called indirectly from\nthe central nat dispatcher hook. They are currently invisible to\nthe nfnl hook dump subsystem though.\n\nBut once that changes the nat ops structures have to be deferred too.\"\n\nUpdate nf_nat_register_fn() to deal with partial exposition of the hooks\nfrom error path which can be also an issue for nfnetlink_hook."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.160", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.114", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.33", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.10", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "5.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:26:25.872Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53000", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:26:25.872Z", "dateReserved": "2026-06-09T07:44:35.377Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-06-24T16:29:12.635Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}, {"lessThan": "ede973d62d26d9c550269af05366ab9e30fc92ee", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}, {"lessThan": "050f98e56782b14677c5bae50800e60775bbf6bb", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}, {"lessThan": "32fdd2e38e7435a368d88f5977a7d6585ebc8b0e", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}, {"lessThan": "3c7511f38ab511b791196b13ae48bf4973bf7dfd", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}, {"lessThan": "6eda0d771f94267f73f57c94630aa47e90957915", "status": "affected", "version": "e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/ipv4/netfilter/iptable_nat.c", "net/ipv6/netfilter/ip6table_nat.c", "net/netfilter/nf_nat_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"lessThan": "5.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.33", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.12.0-55.98.1.el10_0", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9", "cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:5.14.0-687.45.1.el9_8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_eus:9.6"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:5.14.0-570.141.1.el9_6", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:6"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5A940EC0-BB8E-451C-A788-895167BE2835", "versionEndExcluding": "6.18.33", "versionStartIncluding": "5.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nat: use kfree_rcu to release ops\n\nFlorian Westphal says:\n\n\"Historically this is not an issue, even for normal base hooks: the data\npath doesn't use the original nf_hook_ops that are used to register the\ncallbacks.\n\nHowever, in v5.14 I added the ability to dump the active netfilter\nhooks from userspace.\n\nThis code will peek back into the nf_hook_ops that are available\nat the tail of the pointer-array blob used by the datapath.\n\nThe nat hooks are special, because they are called indirectly from\nthe central nat dispatcher hook. They are currently invisible to\nthe nfnl hook dump subsystem though.\n\nBut once that changes the nat ops structures have to be deferred too.\"\n\nUpdate nf_nat_register_fn() to deal with partial exposition of the hooks\nfrom error path which can be also an issue for nfnetlink_hook."}], "id": "CVE-2026-53000", "lastModified": "2026-10-30T13:19:06.473", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53000", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:24:26.886742Z", "version": "2.0.3"}}]}, "published": "2026-06-24T17:17:11.047", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/050f98e56782b14677c5bae50800e60775bbf6bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/32fdd2e38e7435a368d88f5977a7d6585ebc8b0e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3c7511f38ab511b791196b13ae48bf4973bf7dfd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6eda0d771f94267f73f57c94630aa47e90957915"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf17f1d3b307196d9282c4b1dd8be0d0e5f8e529"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ede973d62d26d9c550269af05366ab9e30fc92ee"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:55445"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:64808"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:67720"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:68100"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-53000"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492273"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "tags": ["Third Party Advisory"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53000.json"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-763"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-763"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-763"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: netfilter: nat: use kfree_rcu to release ops", "id": "2492273", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492273"}, "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-763", "details": ["A flaw was found in the Linux kernel's netfilter component, specifically within the Network Address Translation (NAT) subsystem. This vulnerability involves improper memory management when releasing network filter operation structures. This could potentially allow an attacker to cause a system crash, leading to a Denial of Service (DoS), or to gain unauthorized access to sensitive information due to the partial exposure of internal hook data during error handling."], "name": "CVE-2026-53000", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53000\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53000\nhttps://lore.kernel.org/linux-cve-announce/2026062447-CVE-2026-53000-2568@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9,32fdd2e38e7435a368d88f5977a7d6585ebc8b0e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9,3c7511f38ab511b791196b13ae48bf4973bf7dfd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9,6eda0d771f94267f73f57c94630aa47e90957915)"}}], "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": "affected", "versions": {"scheme": "generic", "value": "5.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-24T21:30:04.502075+00:00", "updated": "2026-06-28T13:45:06.280608+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}