Out-of-bounds Read Affecting ffmpeg package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-FFMPEG-19256878
- published25 Aug 2026
- disclosed25 Aug 2026
- creditJoshua Rogers
Introduced: 25 Aug 2026
NewCVE-2026-75147 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read through the AV1 RTP packetizer’s ff_rtp_send_av1 keyframe sequence-header search loop in libavformat/rtpenc_av1.c. An attacker can make FFmpeg read past the end of an AV1 packet by supplying a crafted AV1 frame with an oversized OBU length that is muxed to RTP, causing the loop to advance its buffer pointer and remaining-size counter beyond the packet data on the next iteration. This can crash the process or expose adjacent memory contents while packaging AV1 streams for RTP transmission.