CVEvulnerability
CVE-2026-30754
8.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-08
- Last modified
- 2026-10-15
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
Description
A memory corruption vulnerability exists in FFmpeg before 8.1. The RTP encoding process. In the nal_send function in libavformat/rtpenc_h264_hevc.c, a negative size parameter (size=-3) is passed to memcpy when transmitting H.264/HEVC streams via RTP using a crafted input file. This was detected using AddressSanitizer.
Affected configurations
• ffmpeg ffmpeg (< 8.1)
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20746 Issue Tracking, Patch
- https://gist.github.com/momo-trip/4cddf2c9e15600873de55259dac6b0e6 Third Party Advisory
- https://github.com/momo-trip/poc_ffmpeg Exploit