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Vulnerability IntelligenceCVE-2026-30999

CVE-2026-30999

HIGH7.5

A heap buffer overflow in the av_bprint_finalize() function of FFmpeg v8

Published Apr 13, 2026

Modified 2 months ago

Details

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://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.cve.org/CVERecord?id=CVE-2026-30999

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

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Ecosystems

Timeline

PublishedApr 13, 2026

ModifiedApr 13, 2026

CVE-2026-30999 | Mondoo Vulnerability Intelligence