{"id":"CVE-2026-70343","aliases":["EUVD-2026-100191","GHSA-cghg-475q-8v9j"],"status":"published","title":"Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension 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":0.00912,"percentile":0.60457,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-10-13T19:01:15Z","modified":"2026-11-10T20:44:32Z","products":[{"vendor":"microsoft","product":"mpeg-2 video extension"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70343","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70343"},{"url":"https://github.com/advisories/GHSA-cghg-475q-8v9j"}],"sources":{"cve":[{"id":"CVE-2026-70343","title":"Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:01:15.248Z","modified":"2026-11-10T20:44:32.257Z","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":"2026-11-10T22:18:28.707469Z"}],"euvd":[{"id":"EUVD-2026-100191","description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:01:15Z","modified":"2026-11-10T20:44:32Z","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":"2026-11-10T22:23:56.642439Z"}],"ghsa":[{"id":"GHSA-cghg-475q-8v9j","title":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to...","description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T21:34:23Z","modified":"2026-10-13T21:34:29Z","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":"2026-11-02T15:13:15.646152Z"}],"nvd":[{"id":"CVE-2026-70343","description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:19:50.533Z","modified":"2026-10-13T21:18:18.783Z","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"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}