{"id":"CVE-2026-125068","kind":"vulnerability","aliases":["CVE-2026-125068"],"related":[],"title":"FFmpeg: crafted Bink video file crashes decoder for denial of service","description":"FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Bink video decoder because decode_frame() in libavcodec/bink.c ignores init_get_bits() failure. Attackers can supply a crafted Bink file with a frame of about 2^28 bytes, overflowing the bit count and crashing the process for denial of service.","summary":"FFmpeg's Bink video decoder ignores a failed bit-reader initialization, causing a NULL pointer dereference. An attacker who supplies a crafted Bink file can crash the process, a denial of service.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ffmpeg","libavcodec","media-processing","package"],"not_affected_if":["no-bink-decoding"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-09T19:16:49+00:00","first_seen_at":"2026-11-09T19:28:15+00:00","triaged_at":"2026-11-09T19:31:44+00:00","updated_at":"2026-11-09T19:31:44+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-09T19:31:44Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"unknown","title":"FFmpeg: crafted Bink video file crashes decoder for denial of service","impact":"low","summary":"FFmpeg's Bink video decoder ignores a failed bit-reader initialization, causing a NULL pointer dereference. An attacker who supplies a crafted Bink file can crash the process, a denial of service.","audience":"businesses","category":"package","nicknames":[],"who_cares":["ffmpeg","libavcodec","media-processing"],"confidence":0.6,"fix_status":"unknown","needs_auth":"no","worst_case":"Process crashes, causing denial of service on the decoding service","analyst_note":"Check the NVD and the GitHub patch link for the fixed FFmpeg version and whether the Bink decoder is enabled by default.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-bink-decoding"],"who_is_affected":"Systems that decode Bink video files with FFmpeg, such as media processing pipelines or services accepting user uploads, may be exposed to a crash from a malicious file. Applications that never decode Bink content are unlikely to reach the vulnerable code path. The sources do not state a fixed version.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000697,"input_tokens":4613,"output_tokens":472,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-125068':14A,17A '-2026':13A,16A '2':93C '28':94C '9.0.2':59C 'attack':42B,81C 'bink':3A,26B,47B,68C,86C 'bit':33B,79C,98C 'bit-read':32B 'byte':95C 'caus':36B 'contain':60C 'count':99C 'craft':2A,46B,85C 'crash':6A,50B,101C 'cve':12A,15A 'decod':7A,28B,70C,72C 'denial':9A,54B,105C 'derefer':40B,64C 'fail':31B 'failur':80C 'ffmpeg':1A,18B,24B,57C 'file':5A,48B,87C 'frame':73C,90C 'get':78C 'ignor':29B,76C 'init':77C 'initi':35B 'libavcodec':19B 'libavcodec/bink.c':75C 'media':21B 'media-process':20B 'null':38B,62C 'overflow':96C 'packag':23B 'pointer':39B,63C 'process':22B,52B,103C 'reader':34B 'servic':11A,56B,107C 'suppli':44B,83C 'video':4A,27B,69C 'vulner':65C","nicknames":[],"mitigations":[],"who_affected":"Systems that decode Bink video files with FFmpeg, such as media processing pipelines or services accepting user uploads, may be exposed to a crash from a malicious file. Applications that never decode Bink content are unlikely to reach the vulnerable code path. The sources do not state a fixed version.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ffmpeg","libavcodec","mediaprocessing","medium","package"],"campaign_type":null,"search_a":"'-125068':14A,17A '-2026':13A,16A 'bink':3A 'craft':2A 'crash':6A 'cve':12A,15A 'decod':7A 'denial':9A 'ffmpeg':1A 'file':5A 'servic':11A 'video':4A","search_b":"'attack':42B 'bink':26B,47B 'bit':33B 'bit-read':32B 'caus':36B 'craft':46B 'crash':50B 'decod':28B 'denial':54B 'derefer':40B 'fail':31B 'ffmpeg':18B,24B 'file':48B 'ignor':29B 'initi':35B 'libavcodec':19B 'media':21B 'media-process':20B 'null':38B 'packag':23B 'pointer':39B 'process':22B,52B 'reader':34B 'servic':56B 'suppli':44B 'video':27B","search_c":"'2':93C '28':94C '9.0.2':59C 'attack':81C 'bink':68C,86C 'bit':79C,98C 'byte':95C 'contain':60C 'count':99C 'craft':85C 'crash':101C 'decod':70C,72C 'denial':105C 'derefer':64C 'failur':80C 'ffmpeg':57C 'file':87C 'frame':73C,90C 'get':78C 'ignor':76C 'init':77C 'libavcodec/bink.c':75C 'null':62C 'overflow':96C 'pointer':63C 'process':103C 'servic':107C 'suppli':83C 'video':69C 'vulner':65C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-09T19:16:49+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-125068","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125068","severity":null,"published_at":"2026-11-09T19:16:49+00:00","modified_at":"2026-11-09T19:16:49+00:00","first_seen_at":"2026-11-09T19:28:15+00:00","fetched_at":"2026-11-09T19:28:15+00:00","note":null}],"documents":[{"id":109195,"url":"https://github.com/FFmpeg/FFmpeg/commit/5195d6f9729ad00b93e4d0f0bea309416fb4713e","title":"Patch: github.com","kind":"other","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":109196,"url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-in-bink-video-decoder","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}