CVE-2026-30754
Received Received - Intake

Memory Corruption in FFmpeg via RTP H.264/HEVC Encoding

Publication date: 2026-09-08

Last updated on: 2026-09-08

Assigner: MITRE

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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Meta Information

Published
2026-09-08
Last Modified
2026-09-08
Generated
2026-09-09
EPSS Evaluated
N/A
NVD
CVE-2026-30754

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ffmpeg ffmpeg to 8.1 (exc)

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Exploitability

CWE
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CWE ID Description
CWE-UNKNOWN

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