CVE-2026-31628

{"id": "CVE-2026-31628", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ed7a3a246309ccc807238f1b4f159ee6d37ff9c4", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "0548529af20e68c6552817834b766646dd3bd7a7", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "1272cfedf4cd1019ddf583917a99b62f2d3645bb", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "91f02726b2203b71545713ecb7fb006e60a2d66f", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "b731aca06387b195058a9f6449a03b62efa1bd10", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "ad17f07e95e6e8505e2153e5b391f0d27eacce25", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "e6af5286efe5a56128b34032572c9ce9ebeccda3", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "546785c719418c6166834a47e372a88f5f7ae893", "versionType": "git"}, {"status": "affected", "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9", "lessThan": "e55d98e7756135f32150b9b8f75d580d0d4b2dd3", "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"], "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": "5.10.253", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.203", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.169", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.135", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.82", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.23", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.13", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0.1", "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"], "defaultStatus": "affected"}]}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "affectedData": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.5", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}]}], "published": "2026-04-24T15:16:42.103", "references": [{"url": "https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"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", "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1's hardware divider can leave, under certain circumstances, partial\nresults from previous operations. Those results can be leaked by\nanother, attacker thread.\n\nFix that with a chicken bit."}], "lastModified": "2026-10-15T02:19:13.707", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1981AEB-4867-4AB9-8168-BAB8D6567131", "versionEndExcluding": "3.17", "versionStartIncluding": "3.16.58"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7E307C3F-E33B-4061-B210-F031D88F5C6E", "versionEndExcluding": "4.5", "versionStartIncluding": "4.4.144"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96373A7C-EBC6-4D06-941C-481E7B24579D", "versionEndExcluding": "4.10", "versionStartIncluding": "4.9.102"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A6FC7EE9-71F9-4ACC-9566-0299D47F2B4A", "versionEndExcluding": "5.10.253", "versionStartIncluding": "4.14.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20DDB3E9-AABF-4107-ADB0-5362AA067045", "versionEndExcluding": "5.15.203", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DBEC0E5D-641C-4E98-A6D9-5799B10CE451", "versionEndExcluding": "6.1.169", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15C1A1B2-14EE-494C-AF3E-D5A7BA640B39", "versionEndExcluding": "6.6.135", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02904CAE-71D2-45B3-9EC3-F6A9D18B6307", "versionEndExcluding": "6.12.82", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9E09FDD-9EE3-4A56-92E2-2B30AFD0072F", "versionEndExcluding": "6.18.23", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1490EF9B-9080-481C-8D22-1306AAE664E4", "versionEndExcluding": "6.19.13", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B5888AB-7403-4335-89E4-21CC0B48366A", "versionEndExcluding": "7.0.1", "versionStartIncluding": "7.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.14:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7875AA30-1F6F-470C-A52D-ECBD6663CEC5"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}