{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-62840", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-07-14T21:10:38.083Z", "datePublished": "2026-10-13T20:37:15.976Z", "dateUpdated": "2026-10-13T22:22:28.423Z"}, "containers": {"cna": {"title": "Linux Kernel Elevation of Privilege Vulnerability", "datePublic": "2026-10-13T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:linux_3p_\\(third_party\\)_distros:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:linux_kernel_mana_network_driver:*:*:*:*:*:*:*:*", "versionStartIncluding": "-"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Linux 3P (Third Party) Distros", "versions": [{"version": "1.0.0", "lessThan": "7.3", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Linux kernel - Microsoft MANA Network Driver", "versions": [{"version": "-", "status": "affected"}]}], "descriptions": [{"value": "Time-of-check time-of-use (toctou) race condition in Linux Kernel allows an authorized attacker to elevate privileges locally.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "lang": "en-US", "type": "CWE", "cweId": "CWE-367"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-10-13T22:22:28.423Z"}, "references": [{"name": "Linux Kernel Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62840"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-62840", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-13T21:10:34.499119Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-13T21:15:30.356Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "Linux 3P (Third Party) Distros", "vendor": "Microsoft", "versions": [{"lessThan": "7.3", "status": "affected", "version": "1.0.0", "versionType": "custom"}]}, {"product": "Linux kernel - Microsoft MANA Network Driver", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "-"}]}], "source": "secure@microsoft.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Time-of-check time-of-use (toctou) race condition in Linux Kernel allows an authorized attacker to elevate privileges locally."}], "id": "CVE-2026-62840", "lastModified": "2026-10-13T22:17:38.617", "metrics": {"cvssMetricV31": [{"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": "secure@microsoft.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-62840", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-13T21:10:34.499119Z", "version": "2.0.3"}}]}, "published": "2026-10-13T21:17:40.033", "references": [{"source": "secure@microsoft.com", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62840"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "secure@microsoft.com", "type": "Secondary"}]}

{}

{}