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High severity8.8NVD Advisory· Published Sep 8, 2026· Updated Oct 15, 2026

CVE-2026-30754

CVE-2026-30754

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.

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Affected products

3
  • Momo Trip/Poc Ffmpegreferences
  • FFmpeg/Ffmpeg2 versions
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*range: <8.1
    • (no CPE)range: <8.1

Patches

Vulnerability mechanics

References

2

News mentions

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