[UPDATE] [medium] ffmpeg: Multiple vulnerabilities

mediumCVE-2026-40962 CVE-2026-6385

An attacker can exploit multiple vulnerabilities in ffmpeg to conduct an unspecified attack or to cause a denial-of-service condition.

CSIRTS triage

vendor: ffmpeg product: ffmpeg Denial of serviceOther

What: An attacker can exploit multiple vulnerabilities in ffmpeg to conduct an unspecified attack or cause a denial-of-service condition.
Who is affected: Deployments of ffmpeg are affected.
Urgency: Remediation is medium urgency due to the potential for denial of service.
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: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-07-03
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1143

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-2026-409620.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Low exploitation riskCVE-2026-63850.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-40962	coverage & exploitation status	NVD · CVE.org
CVE-2026-6385	coverage & exploitation status	NVD · CVE.org

Recent advisories for ffmpeg

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [medium] ffmpeg: Vulnerability allows denial of servicecert-bund · 2026-07-03
medium[UPDATE] [medium] ffmpeg: Vulnerability allows code execution and potentially denial of servicecert-bund · 2026-07-03
medium[UPDATE] [medium] ffmpeg: Vulnerability allows Denial of Service, potentially code executioncert-bund · 2026-07-03
medium[UPDATE] [medium] ffmpeg: Vulnerability allows Denial of Servicecert-bund · 2026-07-03
medium[UPDATE] [medium] ffmpeg: Multiple vulnerabilitiescert-bund · 2026-07-03
unknownCVE-2026-13858: Chromium: CVE-2026-13858 Out of bounds read in FFmpegmsrc · 2026-07-02