[NEW] [medium] ffmpeg: Multiple vulnerabilities allow code execution and DoS

CSIRTS triage

What

Multiple vulnerabilities allow an attacker to execute arbitrary code or cause a denial-of-service condition.

Who is affected

All users of ffmpeg are potentially affected by these vulnerabilities.

Urgency

Remediation is important as these vulnerabilities can lead to significant impacts, although exploitation is not currently reported.

Action

Update to the latest version of ffmpeg to mitigate these vulnerabilities.

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

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

medium

Published

2026-09-04

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-2026-2510

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-2026-657030.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-657040.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-657050.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-657060.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• unknownUSN-8716-1: FFmpeg vulnerabilitiesubuntu
• highCVE-2026-65706: FFmpeg versions 3.0 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_swapr…nvd
• highCVE-2026-65705: FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_flood…nvd
• highCVE-2026-65704: FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to ca…nvd
• highCVE-2026-65703: FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC vid…nvd

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.

• criticalCVE-2026-85696: SadTalker contains an OS command injection vulnerability in the video muxing process where upl…nvd · 2026-09-04
• high[NEW] [high] ffmpeg: Multiple vulnerabilitiescert-bund · 2026-09-04
• high[NEW] [high] ffmpeg: Multiple vulnerabilitiescert-bund · 2026-09-04
• unknownUSN-8716-1: FFmpeg vulnerabilitiesubuntu · 2026-09-03
• medium[NEW] [medium] ffmpeg: Vulnerability enables Denial of Servicecert-bund · 2026-09-02
• unknownCVE-2026-52295: Buffer Overflow vulnerability in Ffmpeg v.7.0 and after allows an attacker to cause a denial o…nvd · 2026-09-01

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