CVE-2026-53295

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53295", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.396Z", "datePublished": "2026-06-26T19:40:53.670Z", "dateUpdated": "2026-11-10T12:48:29.891Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-26T19:40:53.670Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: add sanity check for channel array\n\nFail gracefully if there is no channel array attached to the mailbox\ncontroller. Otherwise the later dereference will cause an OOPS which\nmight not be seen because mailbox controllers might instantiate very\nearly. Remove the comment explaining the obvious while here."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mailbox/mailbox.c"], "versions": [{"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "5cc3300fab262b26c28bc2fc06df693410c3840b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "0f11444271110d9b5bc6316a153c6431abda899c", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "d44872a569b8fbacde457ff2587a775e5004bb79", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "14aed0d4e58389cc6a88acf8610b12d3e476272b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "6362c4a7d7e21e68cd9aa04df7cde16befba3a4b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "9dd7489943324298bb0f385495795a82f1dd6507", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "37792091ab28ba030fd8d61184c47d4d51294170", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "c1aad75595fb67edc7fda8af249d3b886efa1be9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mailbox/mailbox.c"], "versions": [{"version": "3.18", "status": "affected"}, {"version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "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": "3.18", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5cc3300fab262b26c28bc2fc06df693410c3840b"}, {"url": "https://git.kernel.org/stable/c/0f11444271110d9b5bc6316a153c6431abda899c"}, {"url": "https://git.kernel.org/stable/c/d44872a569b8fbacde457ff2587a775e5004bb79"}, {"url": "https://git.kernel.org/stable/c/14aed0d4e58389cc6a88acf8610b12d3e476272b"}, {"url": "https://git.kernel.org/stable/c/6362c4a7d7e21e68cd9aa04df7cde16befba3a4b"}, {"url": "https://git.kernel.org/stable/c/9dd7489943324298bb0f385495795a82f1dd6507"}, {"url": "https://git.kernel.org/stable/c/37792091ab28ba030fd8d61184c47d4d51294170"}, {"url": "https://git.kernel.org/stable/c/c1aad75595fb67edc7fda8af249d3b886efa1be9"}], "title": "mailbox: add sanity check for channel array", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-11-10T12:48:29.891Z"}, "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "references": [{"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-2026-53295", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:25:53.142555Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:34:18.976Z"}}]}}

{"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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "x_adpType": "supplier", "references": [{"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": "2026-11-10T12:48:29.891Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53295", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:25:53.142555Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:25:54.312Z"}}], "cna": {"title": "mailbox: add sanity check for channel array", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "5cc3300fab262b26c28bc2fc06df693410c3840b", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "0f11444271110d9b5bc6316a153c6431abda899c", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "d44872a569b8fbacde457ff2587a775e5004bb79", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "14aed0d4e58389cc6a88acf8610b12d3e476272b", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "6362c4a7d7e21e68cd9aa04df7cde16befba3a4b", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "9dd7489943324298bb0f385495795a82f1dd6507", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "37792091ab28ba030fd8d61184c47d4d51294170", "versionType": "git"}, {"status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "c1aad75595fb67edc7fda8af249d3b886efa1be9", "versionType": "git"}], "programFiles": ["drivers/mailbox/mailbox.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.18"}, {"status": "unaffected", "version": "0", "lessThan": "3.18", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.258", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.141", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.91", "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": ["drivers/mailbox/mailbox.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/5cc3300fab262b26c28bc2fc06df693410c3840b"}, {"url": "https://git.kernel.org/stable/c/0f11444271110d9b5bc6316a153c6431abda899c"}, {"url": "https://git.kernel.org/stable/c/d44872a569b8fbacde457ff2587a775e5004bb79"}, {"url": "https://git.kernel.org/stable/c/14aed0d4e58389cc6a88acf8610b12d3e476272b"}, {"url": "https://git.kernel.org/stable/c/6362c4a7d7e21e68cd9aa04df7cde16befba3a4b"}, {"url": "https://git.kernel.org/stable/c/9dd7489943324298bb0f385495795a82f1dd6507"}, {"url": "https://git.kernel.org/stable/c/37792091ab28ba030fd8d61184c47d4d51294170"}, {"url": "https://git.kernel.org/stable/c/c1aad75595fb67edc7fda8af249d3b886efa1be9"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: add sanity check for channel array\n\nFail gracefully if there is no channel array attached to the mailbox\ncontroller. Otherwise the later dereference will cause an OOPS which\nmight not be seen because mailbox controllers might instantiate very\nearly. Remove the comment explaining the obvious while here."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.258", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.209", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.175", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.141", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.91", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.33", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.10", "versionStartIncluding": "3.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "3.18"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-26T19:40:53.670Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53295", "state": "PUBLISHED", "dateUpdated": "2026-11-10T12:48:29.891Z", "dateReserved": "2026-06-09T07:44:35.396Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-06-26T19:40:53.670Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mailbox/mailbox.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5cc3300fab262b26c28bc2fc06df693410c3840b", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "0f11444271110d9b5bc6316a153c6431abda899c", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "d44872a569b8fbacde457ff2587a775e5004bb79", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "14aed0d4e58389cc6a88acf8610b12d3e476272b", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "6362c4a7d7e21e68cd9aa04df7cde16befba3a4b", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "9dd7489943324298bb0f385495795a82f1dd6507", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "37792091ab28ba030fd8d61184c47d4d51294170", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}, {"lessThan": "c1aad75595fb67edc7fda8af249d3b886efa1be9", "status": "affected", "version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mailbox/mailbox.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.18"}, {"lessThan": "3.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.258", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.209", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.175", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.141", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.91", "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": [{"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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "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": "V3.1.7", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D36936DE-7EC9-4AB7-91F8-90295F05E2EB", "versionEndExcluding": "5.10.258", "versionStartIncluding": "3.18.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "97A9FFFA-22BB-4D5C-9790-5A2286E392F7", "versionEndExcluding": "6.6.141", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C918746B-DE6F-448F-A93E-A04C5481688D", "versionEndExcluding": "6.12.91", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "96D99E49-380D-43AB-BDBA-25C3AD018A9C", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.13", "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}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:-:*:*:*:*:*:*", "matchCriteriaId": "2C941823-DB24-432E-8F78-90665662756A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc2:*:*:*:*:*:*", "matchCriteriaId": "E909F0A0-2398-4420-AA63-605C42F5CADF", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc3:*:*:*:*:*:*", "matchCriteriaId": "77E4C479-2D2C-4009-8D71-18AF50454D7B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc4:*:*:*:*:*:*", "matchCriteriaId": "C5AE67DB-5E94-4439-98E9-761ACCC48A4A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc5:*:*:*:*:*:*", "matchCriteriaId": "777DE673-1457-420F-AAAF-9B1E3AC79328", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc6:*:*:*:*:*:*", "matchCriteriaId": "222D33AD-EC2D-4813-83C2-B904534BFCFE", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.18:rc7:*:*:*:*:*:*", "matchCriteriaId": "A5F9AEA5-34CE-4ED3-9821-6C7435CE3320", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: add sanity check for channel array\n\nFail gracefully if there is no channel array attached to the mailbox\ncontroller. Otherwise the later dereference will cause an OOPS which\nmight not be seen because mailbox controllers might instantiate very\nearly. Remove the comment explaining the obvious while here."}], "id": "CVE-2026-53295", "lastModified": "2026-11-10T13:19:25.613", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53295", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:25:53.142555Z", "version": "2.0.3"}}]}, "published": "2026-06-26T20:17:22.427", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0f11444271110d9b5bc6316a153c6431abda899c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/14aed0d4e58389cc6a88acf8610b12d3e476272b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/37792091ab28ba030fd8d61184c47d4d51294170"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5cc3300fab262b26c28bc2fc06df693410c3840b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6362c4a7d7e21e68cd9aa04df7cde16befba3a4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9dd7489943324298bb0f385495795a82f1dd6507"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c1aad75595fb67edc7fda8af249d3b886efa1be9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d44872a569b8fbacde457ff2587a775e5004bb79"}, {"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-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mailbox: add sanity check for channel array", "id": "2493759", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493759"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-166", "details": ["A flaw was found in the Linux kernel's mailbox component. This vulnerability arises from an insufficient sanity check for the channel array. When a mailbox controller is initialized without an attached channel array, a subsequent operation can lead to a null pointer dereference, causing a kernel crash. This could result in a denial of service for the affected system."], "name": "CVE-2026-53295", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53295\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53295\nhttps://lore.kernel.org/linux-cve-announce/2026062617-CVE-2026-53295-770b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,5cc3300fab262b26c28bc2fc06df693410c3840b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,0f11444271110d9b5bc6316a153c6431abda899c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,d44872a569b8fbacde457ff2587a775e5004bb79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,14aed0d4e58389cc6a88acf8610b12d3e476272b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,6362c4a7d7e21e68cd9aa04df7cde16befba3a4b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,9dd7489943324298bb0f385495795a82f1dd6507)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,37792091ab28ba030fd8d61184c47d4d51294170)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,c1aad75595fb67edc7fda8af249d3b886efa1be9)"}}], "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": "3.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.258,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.209,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.175,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.141,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.91,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.33,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0.10,7.0.*]"}}, {"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": "2026-06-26T22:30:04.062915+00:00", "updated": "2026-08-12T08:45:02.328267+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-166"]}