{"id":"CVE-2026-26179","title":"Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.","summary":"Double free 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","cwe":["CWE-415"],"vendor":"microsoft","product":"windows_11_23h2","affected":["windows_11_23h2 < 10.0.22631.6936","windows_11_24h2 < 10.0.26100.8246","windows_11_25h2 < 10.0.26200.8246","windows_11_26h1 < 10.0.28000.1836","windows_server_2022_23h2 < 10.0.25398.2274","windows_server_2025 < 10.0.26100.32690"],"patched":["windows_11_23h2 10.0.22631.6936","windows_11_24h2 10.0.26100.8246","windows_11_25h2 10.0.26200.8246","windows_11_26h1 10.0.28000.1836","windows_server_2022_23h2 10.0.25398.2274","windows_server_2025 10.0.26100.32690"],"published":"2026-04-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T23:17:36.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-26179","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26179","label":"secure@microsoft.com"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.0044,"epssPercentile":0.38025,"exploits":{"github":1,"githubRepos":["https://github.com/nikosecurity/CVE-2026-26179"],"checkedAt":"2026-10-27T17:03:13.578Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-04-09T00:00:00+00:00"},"ingestedAt":"2026-09-25T18:14:20.457Z","slug":"CVE-2026-26179","body":"## Overview\n\nDouble free in Windows Kernel allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_11_23h2 < 10.0.22631.6936`\n- `windows_11_24h2 < 10.0.26100.8246`\n- `windows_11_25h2 < 10.0.26200.8246`\n- `windows_11_26h1 < 10.0.28000.1836`\n- `windows_server_2022_23h2 < 10.0.25398.2274`\n- `windows_server_2025 < 10.0.26100.32690`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_23h2 10.0.22631.6936`\n- `windows_11_24h2 10.0.26100.8246`\n- `windows_11_25h2 10.0.26200.8246`\n- `windows_11_26h1 10.0.28000.1836`\n- `windows_server_2022_23h2 10.0.25398.2274`\n- `windows_server_2025 10.0.26100.32690`","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}