CVE-2026-30999

Impact

A heap buffer overflow in the av_bprint_finalize() function of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• https://excellent-oatmeal-319.notion.site/CVE-2026-30999-Memory-Leak-e0d88ac53e2e42c1b5ef9aa3497e27b6
• https://ffmpeg.org/doxygen/7.0/zmqsend_8c_source.html
• https://github.com/FFmpeg/FFmpeg/blob/master/tools/zmqsend.c
• https://www.ffmpeg.org/download.html