{"id":"CVE-2026-48566","title":"Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.","summary":"Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges 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_24h2","affected":["windows_11_24h2 < 10.0.26100.8390","windows_11_25h2 < 10.0.26200.8390","windows_11_26h1 < 10.0.28000.2113","windows_server_2025 < 10.0.26100.32772"],"patched":["windows_11_24h2 10.0.26100.8390","windows_11_25h2 10.0.26200.8390","windows_11_26h1 10.0.28000.2113","windows_server_2025 10.0.26100.32772"],"published":"2026-06-09","updated":"2026-08-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-48566","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48566","label":"secure@microsoft.com"}],"tags":["nvd"],"epss":0.00388,"epssPercentile":0.32741,"ingestedAt":"2026-08-15T13:26:46.438Z","slug":"CVE-2026-48566","body":"## Overview\n\nOut-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.\n\n## Affected\n\n- `windows_11_24h2 < 10.0.26100.8390`\n- `windows_11_25h2 < 10.0.26200.8390`\n- `windows_11_26h1 < 10.0.28000.2113`\n- `windows_server_2025 < 10.0.26100.32772`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_11_24h2 10.0.26100.8390`\n- `windows_11_25h2 10.0.26200.8390`\n- `windows_11_26h1 10.0.28000.2113`\n- `windows_server_2025 10.0.26100.32772`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}