{"id":"CVE-2026-58600","title":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.","summary":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"vendor":"microsoft","product":"hevc_video_extensions","affected":["hevc_video_extensions < 2.4.87.0","hevc_video_extensions_for_licensed_applications < 2.4.85.0","hevc_video_extensions_from_device_manufacturer < 2.4.86.0","hevc_video_extensions_from_device_manufacturer < 2.5.25.0"],"patched":["hevc_video_extensions 2.4.87.0","hevc_video_extensions_for_licensed_applications 2.4.85.0","hevc_video_extensions_from_device_manufacturer 2.5.25.0"],"published":"2026-09-08","updated":"2026-10-01","sourceUpdated":"2026-10-01T16:33:41.593","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-58600","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58600","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00466,"epssPercentile":0.40224,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-09T18:19:55.766185Z"},"ingestedAt":"2026-09-08T18:07:34.929Z","slug":"CVE-2026-58600","body":"## Overview\n\nHeap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to elevate privileges locally.\n\n## Affected\n\n- `hevc_video_extensions < 2.4.87.0`\n- `hevc_video_extensions_for_licensed_applications < 2.4.85.0`\n- `hevc_video_extensions_from_device_manufacturer < 2.4.86.0`\n- `hevc_video_extensions_from_device_manufacturer < 2.5.25.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `hevc_video_extensions 2.4.87.0`\n- `hevc_video_extensions_for_licensed_applications 2.4.85.0`\n- `hevc_video_extensions_from_device_manufacturer 2.5.25.0`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}