Unrated severityNVD Advisory· Published Sep 8, 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(expand)+ 1 more
- (no CPE)
- (no CPE)range: <8.1
Patches
Vulnerability mechanics
References
2News mentions
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