CVE-2026-30999

high

Description

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.

References

https://www.ffmpeg.org/download.html

https://github.com/FFmpeg/FFmpeg/blob/master/tools/zmqsend.c

https://ffmpeg.org/doxygen/7.0/zmqsend_8c_source.html

https://excellent-oatmeal-319.notion.site/CVE-2026-30999-Memory-Leak-e0d88ac53e2e42c1b5ef9aa3497e27b6

Details

Source: Mitre, NVD

Published: 2026-04-13

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00041