[UPDATE] [mittel] ffmpeg: Mehrere Schwachstellen

CSIRTS triage

What

Multiple vulnerabilities allow local attackers to execute arbitrary code, manipulate data, or disclose information.

Who is affected

Systems running ffmpeg with local user access are affected.

Urgency

Moderate; local-only vulnerabilities limiting immediate risk despite code execution potential.

Action

Update ffmpeg to a patched version when available.

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

2026-09-09

Exploitation

Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2700

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-2026-706280.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-706290.13% 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-2026-706300.13% 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-2026-706310.13% 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-2026-706320.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• unknownUSN-8738-1: FFmpeg vulnerabilitiesubuntu
• unknownUSN-8680-1: FFmpeg vulnerabilitiesubuntu
• highCVE-2026-70632: FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vul…nvd
• mediumCVE-2026-70631: FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory di…nvd
• mediumCVE-2026-70630: FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory re…nvd
• mediumCVE-2026-70629: FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory re…nvd
• highCVE-2026-70628: FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulne…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.

• medium[UPDATE] [mittel] ffmpeg: Mehrere Schwachstellen ermöglichen Codeausführung und DoScert-bund · 2026-09-10
• high[UPDATE] [hoch] ffmpeg: Mehrere Schwachstellencert-bund · 2026-09-10
• high[UPDATE] [hoch] ffmpeg: Mehrere Schwachstellencert-bund · 2026-09-10
• high[UPDATE] [hoch] ffmpeg: Mehrere Schwachstellencert-bund · 2026-09-10
• unknownUSN-8716-2: FFmpeg vulnerabilitiesubuntu · 2026-09-09
• medium[NEU] [mittel] ffmpeg: Schwachstelle ermöglicht Ausführen von beliebigem Programmcodecert-bund · 2026-09-09

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