{"id":"CVE-2026-83517","published":"2026-10-13T19:19:57.447","lastModified":"2026-10-16T16:21:06.320","description":"Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-122"],"vendors":[],"products":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83517","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in Windows Media Foundation allows remote attackers to execute arbitrary code with high privileges. This vulnerability affects any system that processes media files through the affected component.","exploitability":"Exploitation is likely straightforward with a remote attacker able to deliver a malicious media file, requiring no user interaction or authentication for successful execution.","blast_radius":"The impact could be widespread across Windows systems that handle media content, potentially allowing attackers to gain full system control on affected machines.","remediation":"Deploy the Microsoft Security Update KB5049812 immediately as it contains the fix for this vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","media","windows"],"model":"garnet-coder","analyzedAt":"2026-10-14T08:48:56.084Z"}}