{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-57973", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-06-26T17:45:44.853Z", "datePublished": "2026-07-14T17:09:40.251Z", "dateUpdated": "2026-07-20T16:05:51.261Z"}, "containers": {"cna": {"title": "Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability", "datePublic": "2026-07-14T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0.0", "versionEndExcluding": "2.7.10"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Subsystem for Linux (WSL2)", "versions": [{"version": "5.0.0.0", "lessThan": "2.7.10", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering 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": "2026-07-20T16:05:51.261Z"}, "references": [{"name": "Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-15T03:58:38.849682Z", "id": "CVE-2026-57973", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-15T10:46:47.537Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-57973", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-15T03:58:38.849682Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-15T10:46:42.944Z"}}], "cna": {"title": "Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"vendor": "Microsoft", "product": "Windows Subsystem for Linux (WSL2)", "versions": [{"status": "affected", "version": "5.0.0.0", "lessThan": "2.7.10", "versionType": "custom"}]}], "datePublic": "2026-07-14T14:00:00.000Z", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973", "name": "Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability", "tags": ["vendor-advisory", "patch"]}], "descriptions": [{"lang": "en-US", "value": "Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally."}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "CWE", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.7.10", "versionStartIncluding": "5.0.0.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-07-17T21:33:33.169Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57973", "state": "PUBLISHED", "dateUpdated": "2026-07-17T21:33:33.169Z", "dateReserved": "2026-06-26T17:45:44.853Z", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2026-07-14T17:09:40.251Z", "assignerShortName": "microsoft"}, "dataVersion": "5.2"}

{}

{}