DSA-6361-1 ffmpeg - security update

unknownCVE-2025-22921 CVE-2026-8461 CVE-2026-30997

Several vulnerabilities have been discovered in the FFmpeg multimedia framework, which could result in denial of service or potentially the execution of arbitrary code if malformed files/streams are processed. https://security-tracker.debian.org/tracker/DSA-6361-1

CSIRTS triage

vendor: FFmpeg product: FFmpeg Denial of service Remote code execution

What: Several vulnerabilities could result in denial of service or potentially the execution of arbitrary code when processing malformed files.
Who is affected: Deployments of FFmpeg are affected.
Urgency: Remediation is urgent due to the potential for arbitrary code execution.
Action: Update to the latest version of FFmpeg.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Debian Security Advisories (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-06-22
Exploitation: Not in CISA KEV at last sync

Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00272.html

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-229210.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.
Low exploitation riskCVE-2026-84610.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all scored CVEs.
Low exploitation riskCVE-2026-309970.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-22921	coverage & exploitation status	NVD · CVE.org
CVE-2026-8461	coverage & exploitation status	NVD · CVE.org
CVE-2026-30997	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[UPDATE] [medium] ffmpeg: Multiple vulnerabilitiescert-bund