{"id":"CVE-2026-81352","aliases":["EUVD-2026-73848","GHSA-hjjj-2c64-x435"],"status":"published","title":"Web Media Extensions Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00571,"percentile":0.47685,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:18:50Z","modified":"2026-11-10T21:37:52Z","products":[{"vendor":"microsoft","product":"web media extensions"},{"vendor":"microsoft","product":"web_media_extensions"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81352","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81352"},{"url":"https://github.com/advisories/GHSA-hjjj-2c64-x435"}],"sources":{"cve":[{"id":"CVE-2026-81352","title":"Web Media Extensions Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:50.259Z","modified":"2026-11-10T21:37:52.02Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:54.14451Z"}],"euvd":[{"id":"EUVD-2026-73848","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:50Z","modified":"2026-11-10T21:37:52Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:19.311812Z"}],"ghsa":[{"id":"GHSA-hjjj-2c64-x435","title":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to...","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:33:29Z","modified":"2026-09-08T18:34:16Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:34.690977Z"}],"nvd":[{"id":"CVE-2026-81352","description":"Heap-based buffer overflow in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:52.94Z","modified":"2026-09-30T17:57:51.983Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}