{"id":"CVE-2026-77899","title":"Use after free in Windows Security Center allows an authorized attacker to elevate privileges locally.","summary":"Use after free in Windows Security Center allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"microsoft","product":"windows_11_24h2","affected":["windows_11_24h2 < 10.0.26100.9445","windows_11_25h2 < 10.0.26200.9445","windows_11_26h1 < 10.0.28000.2954","windows_server_2012"],"patched":["windows_11_24h2 10.0.26100.9445","windows_11_25h2 10.0.26200.9445","windows_11_26h1 10.0.28000.2954"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:09:21.767","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77899","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77899","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00199,"epssPercentile":0.09984,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-08T18:57:12.146708Z"},"ingestedAt":"2026-09-08T19:08:49.628Z","slug":"CVE-2026-77899","body":"## Overview\n\nUse after free in Windows Security Center allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_11_24h2 < 10.0.26100.9445`\n- `windows_11_25h2 < 10.0.26200.9445`\n- `windows_11_26h1 < 10.0.28000.2954`\n- `windows_server_2012`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_24h2 10.0.26100.9445`\n- `windows_11_25h2 10.0.26200.9445`\n- `windows_11_26h1 10.0.28000.2954`","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}