{"id":"CVE-2026-56189","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56189","summary":"Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.","details":"Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.","published":"2026-07-14T18:18:28.997","modified":"2026-07-22T11:41:07.990","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56189"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-07-22T11:41:07.990"}}