{"id":"CVE-2026-83501","title":"Out-of-bounds read in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.","summary":"Out-of-bounds read in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-125"],"vendor":"microsoft","product":"windows_11_23h2","affected":["windows_11_23h2 < 10.0.22631.7582","windows_11_24h2 < 10.0.26100.9445","windows_11_25h2 < 10.0.26200.9445","windows_11_26h1 < 10.0.28000.2954","windows_server_2025 < 10.0.26100.33438"],"patched":["windows_11_23h2 10.0.22631.7582","windows_11_24h2 10.0.26100.9445","windows_11_25h2 10.0.26200.9445","windows_11_26h1 10.0.28000.2954","windows_server_2025 10.0.26100.33438"],"published":"2026-09-08","updated":"2026-09-10","sourceUpdated":"2026-09-10T14:50:38.493","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83501","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83501","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T19:40:57.093015Z"},"epss":0.00304,"epssPercentile":0.23318,"ingestedAt":"2026-09-08T19:08:49.632Z","slug":"CVE-2026-83501","body":"## Overview\n\nOut-of-bounds read in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information locally.\n\n## Affected\n\n- `windows_11_23h2 < 10.0.22631.7582`\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_2025 < 10.0.26100.33438`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_23h2 10.0.22631.7582`\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_2025 10.0.26100.33438`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}