What’s Vulnerable › Vulnerabilities

CVE-2026-30999

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-13 · updated 2026-06-17
• Weakness: CWE-122

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.

Affected products

• FFmpeg: through 8.0.1

References

• 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

Get alerted when CVE-2026-30999 or the next vulnerability affects your stack