{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/ffmpeg--8.1.3/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-125203"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["FFmpeg (\u003c 8.1.3)","FFmpeg (9.x \u003c 9.0.2)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eFFmpeg versions before 8.1.3 and 9.x before 9.0.2 contain a heap buffer overflow vulnerability in the Cook multichannel decoder located in 'libavcodec/cook.c'. The vulnerability occurs because the decoder fails to verify that subpacket channel masks are disjoint. An attacker can supply a crafted RealMedia Cook stream with overlapping subpacket masks, causing the 'cook_decode_frame()' function to write decoded samples beyond allocated output planes in any application decoding the file.\u003c/p\u003e\n","date_modified":"2026-11-09T19:52:20Z","date_published":"2026-11-09T19:52:20Z","id":"https://feed.craftedsignal.io/briefs/2026-11-ffmpeg-heap-overflow-a2833aa1/","summary":"A heap buffer overflow in the FFmpeg Cook multichannel decoder allows an out-of-bounds write via a crafted RealMedia stream.","title":"FFmpeg: Heap buffer overflow in Cook multichannel decoder (CVE-2026-125203)","url":"https://feed.craftedsignal.io/briefs/2026-11-ffmpeg-heap-overflow-a2833aa1/"}],"language":"en","title":"CraftedSignal Threat Feed - FFmpeg (\u003c 8.1.3)","version":"https://jsonfeed.org/version/1.1"}