{"id":"CVE-2026-105009","title":"Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.","summary":"Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-276"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T22:17:27.317","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105009","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105009","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-13T19:43:28.912Z","vendor":"Microsoft","product":"Windows Server 2012","affected":["windows_server_2012 >= 6.2.9200.0 < 6.2.9200.26434","windows_server_2012_server_core_installation >= 6.2.9200.0 < 6.2.9200.26434","windows_server_2012_r2 >= 6.3.9600.0 < 6.3.9600.23470","windows_server_2012_r2_server_core_installation >= 6.3.9600.0 < 6.3.9600.23470","windows_server_2016 >= 10.0.14393.0 < 10.0.14393.9612","windows_server_2016_server_core_installation >= 10.0.14393.0 < 10.0.14393.9612","windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9376","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9376","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5761","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33650","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33650"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T21:12:42.590281Z"},"slug":"CVE-2026-105009","body":"## Overview\n\nIncorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}