Heap Buffer Overflow in FFmpeg v8.0.1 Affects Video Processing
CVE-2026-30999

7.5HIGH

Key Information:

Vendor

FFmpeg

Status
FFmpeg
Vendor
CVE Published:
13 April 2026

What is CVE-2026-30999?

A heap buffer overflow has been identified in the av_bprint_finalize() function of FFmpeg version 8.0.1. This vulnerability allows attackers to send specially crafted input to FFmpeg, potentially leading to a Denial of Service (DoS). Exploiting this vulnerability could disrupt normal video processing and application functionality, highlighting the importance of maintaining up-to-date software versions and implementing robust security measures.

References

https://github.com/FFmpeg/FFmpeg/blob/master/tools/zmqsend.c
https://ffmpeg.org/doxygen/7.0/zmqsend_8c_source.html
https://www.ffmpeg.org/download.html

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.