CVE-2026-125254 · Package
NO FIX YET
FFmpeg through 9.0.2 has a division-by-zero bug in its VVC decoder, because reference list indices are not validated. A crafted VVC video file makes the decoding process crash.
first public Nov 9, 2026 · 1 source
Could this affect your app?
Free first check from your website. Connect your repo for the full answer.
Systems that decode VVC bitstreams with FFmpeg, especially those that accept video from untrusted users or uploads. Pipelines that never decode VVC input are not exposed by this flaw. The sources do not name the fixed version; a patch is linked from the advisory references.
Not affected if no-vvc-decoding, trusted-input-only
Who cares ffmpeg, video-processing, vvc
ffmpeg -version and compare against the fixed release named in the sources.No fix yet, per the sources.
FFmpeg through 9.0.2 contains a division by zero vulnerability in the VVC decoder because ff_vvc_slice_rpl() fails to validate num_ref_idx_active against built reference list entries. Attackers can supply a crafted VVC bitstream whose excess reference indices yield a zero POC difference in ff_vvc_mv_scale(), crashing the decoding process.
This page as .md · .json · 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
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
Check it with your coding agent
It reads this page and tells you if your code is affected.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.