{"id":"CVE-2026-97803","title":"Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.","summary":"Heap-based buffer overflow 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-122"],"vendor":"microsoft","product":"windows_11_26h1","affected":["windows_11_26h1 < 10.0.28000.3231"],"patched":["windows_11_26h1 10.0.28000.3231"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T10:40:28.667","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97803","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97803","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00353,"epssPercentile":0.2879,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T21:58:29.650415Z"},"ingestedAt":"2026-10-13T19:43:29.308Z","slug":"CVE-2026-97803","body":"## Overview\n\nHeap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_11_26h1 < 10.0.28000.3231`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_26h1 10.0.28000.3231`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}