{"id":"CVE-2026-70343","title":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","summary":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T21:18:18.783","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70343","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70343","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-13T19:43:29.052Z","vendor":"Microsoft","product":"MPEG-2 Video Extension","affected":["mpeg-2_video_extension >= 1.0.0.0 < 1.2.32.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-13T20:43:03.265299Z"},"epss":0.00912,"epssPercentile":0.59834,"slug":"CVE-2026-70343","body":"## Overview\n\nHeap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}