CVE intelligence

CVE-2026-30999

Vulnerability intelligence

Published Apr 13, 2026Sources checked Sep 13, 2026

7.5HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-30999 and is rated High severity with a CVSS score of 7.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-30999?

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.