{"api_version":"1","generated_at":"2026-10-23T15:55:16+00:00","cve":"CVE-2026-105009","urls":{"html":"https://cve.report/CVE-2026-105009","api":"https://cve.report/api/cve/CVE-2026-105009.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-105009","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105009"},"summary":{"title":"Windows Server Update Service Elevation of Privilege Vulnerability","description":"Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.","state":"PUBLISHED","assigner":"microsoft","published_at":"2026-10-13 19:17:57","updated_at":"2026-10-17 04:16:47"},"problem_types":["CWE-276","CWE-276 CWE-276: Incorrect Default Permissions"],"metrics":[{"version":"3.1","source":"secure@microsoft.com","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","data":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"}}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105009","name":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105009","refsource":"secure@microsoft.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-105009","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105009","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2012","version":"affected 6.2.9200.0 6.2.9200.26434 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2012 (Server Core installation)","version":"affected 6.2.9200.0 6.2.9200.26434 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2012 R2","version":"affected 6.3.9600.0 6.3.9600.23470 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2012 R2 (Server Core installation)","version":"affected 6.3.9600.0 6.3.9600.23470 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2016","version":"affected 10.0.14393.0 10.0.14393.9612 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2016 (Server Core installation)","version":"affected 10.0.14393.0 10.0.14393.9612 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2019","version":"affected 10.0.17763.0 10.0.17763.9376 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","version":"affected 10.0.17763.0 10.0.17763.9376 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2022","version":"affected 10.0.20348.0 10.0.20348.5761 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2025","version":"affected 10.0.26100.0 10.0.26100.33650 custom","platforms":["x64-based Systems"]},{"source":"CNA","vendor":"Microsoft","product":"Windows Server 2025 (Server Core installation)","version":"affected 10.0.26100.0 10.0.26100.33650 custom","platforms":["x64-based Systems"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"105009","cve":"CVE-2026-105009","epss":"0.002880000","percentile":"0.201960000","score_date":"2026-10-22","updated_at":"2026-10-23 00:07:33"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-105009","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-16T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-17T03:55:54.108Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"platforms":["x64-based Systems"],"product":"Windows Server 2012","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26434","status":"affected","version":"6.2.9200.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2012 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.2.9200.26434","status":"affected","version":"6.2.9200.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23470","status":"affected","version":"6.3.9600.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2012 R2 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"6.3.9600.23470","status":"affected","version":"6.3.9600.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9612","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2016 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.14393.9612","status":"affected","version":"10.0.14393.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9376","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2019 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.17763.9376","status":"affected","version":"10.0.17763.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2022","vendor":"Microsoft","versions":[{"lessThan":"10.0.20348.5761","status":"affected","version":"10.0.20348.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33650","status":"affected","version":"10.0.26100.0","versionType":"custom"}]},{"platforms":["x64-based Systems"],"product":"Windows Server 2025 (Server Core installation)","vendor":"Microsoft","versions":[{"lessThan":"10.0.26100.33650","status":"affected","version":"10.0.26100.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionEndExcluding":"6.2.9200.26434","versionStartIncluding":"6.2.9200.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionEndExcluding":"6.2.9200.26434","versionStartIncluding":"6.2.9200.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionEndExcluding":"6.3.9600.23470","versionStartIncluding":"6.3.9600.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionEndExcluding":"6.3.9600.23470","versionStartIncluding":"6.3.9600.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.9612","versionStartIncluding":"10.0.14393.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.9612","versionStartIncluding":"10.0.14393.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.17763.9376","versionStartIncluding":"10.0.17763.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.17763.9376","versionStartIncluding":"10.0.17763.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.20348.5761","versionStartIncluding":"10.0.20348.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.26100.33650","versionStartIncluding":"10.0.26100.0","vulnerable":true},{"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.26100.33650","versionStartIncluding":"10.0.26100.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"datePublic":"2026-10-13T14:00:00.000Z","descriptions":[{"lang":"en-US","value":"Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally."}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-276","description":"CWE-276: Incorrect Default Permissions","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-16T23:26:41.128Z","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft"},"references":[{"name":"Windows Server Update Service Elevation of Privilege Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105009"}],"title":"Windows Server Update Service Elevation of Privilege Vulnerability"}},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2026-105009","datePublished":"2026-10-13T19:01:37.135Z","dateReserved":"2026-10-02T20:51:38.831Z","dateUpdated":"2026-10-17T03:55:54.108Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-13 19:17:57","lastModifiedDate":"2026-10-17 04:16:47","problem_types":["CWE-276","CWE-276 CWE-276: Incorrect Default Permissions"],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.8,"impactScore":6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-16T00:00:00+00:00","id":"CVE-2026-105009","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"105009","Ordinal":"1","Title":"Windows Server Update Service Elevation of Privilege Vulnerabili","CVE":"CVE-2026-105009","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"105009","Ordinal":"1","NoteData":"Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.","Type":"Description","Title":"Windows Server Update Service Elevation of Privilege Vulnerabili"}]}}}