CVE-2026-30999

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

• NVD record
• 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
• https://excellent-oatmeal-319.notion.site/CVE-2026-30999-Memory-Leak-e0d88ac53e2e42c1b5ef9aa3497e27b6Advisory