{"id":"CVE-2026-65773","title":"Windows Kernel Elevation of Privilege Vulnerability","summary":"Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-284"],"vendor":"Microsoft","product":"Windows 10 Version 1809","affected":["windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.9121","windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7663","windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7663","windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7517","windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7517","windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.9168","windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.9168","windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2704","windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9121","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9121","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5499","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-12T03:57:03.118285Z"},"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:26:23.731Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-65773","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65773","label":"Windows Kernel Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00242,"epssPercentile":0.15696,"ingestedAt":"2026-09-08T18:07:34.889Z","slug":"CVE-2026-65773","body":"## Overview\n\nImproper access control in Windows Kernel allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.9121`\n- `windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7663`\n- `windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7663`\n- `windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7517`\n- `windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.7517`\n- `windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.9168`\n- `windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.9168`\n- `windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2704`\n- `windows_server_2019 >= 10.0.17763.0 < 10.0.17763.9121`\n- `windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.9121`\n- `windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5499`\n- `windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296`\n- `windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}