{"id":"CVE-2026-83939","title":"Untrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.","summary":"Untrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-822"],"vendor":"microsoft","product":"windows_11_26h1","affected":["windows_11_26h1 < 10.0.28000.2954"],"patched":["windows_11_26h1 10.0.28000.2954"],"published":"2026-09-08","updated":"2026-09-10","sourceUpdated":"2026-09-10T15:00:33.013","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83939","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83939","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T04:19:32.459602Z"},"epss":0.00296,"epssPercentile":0.2254,"ingestedAt":"2026-09-08T19:08:49.632Z","slug":"CVE-2026-83939","body":"## Overview\n\nUntrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_11_26h1 < 10.0.28000.2954`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_26h1 10.0.28000.2954`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}