Is CVE-2009-4635 in the CISA KEV catalog?

No. CVE-2009-4635 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-4635?

CVE-2009-4635 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2009-4635?

CVE-2009-4635 has an EPSS score of 8.09% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-4635?

Upgrade ffmpeg on debian 11 to 4:0.5+svn20090706-3 or later.

CVE & CISA-KEV Catalog

CVE-2009-4635

HIGHEPSS 94th pctl

9.3

CVSS v2

NVD

Description

FFmpeg 0.5 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted MOV container with improperly ordered tags that cause (1) mov.c and (2) utils.c to use inconsistent codec types and identifiers, leading to processing of a video-structure pointer by the mp3 decoder, and a stack-based buffer overflow.

CWE-94Code Injection

How to fix

Remediation Available

ffmpegDebian

Fixed in:4:0.5+svn20090706-3CVE-2009-4635

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

8.09%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Exploit1

roundup.ffmpeg.org

Other references15

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

Embed a live status badge for CVE-2009-4635

Markdown

[![CVE-2009-4635](https://tridentstack.com/cve/badge/CVE-2009-4635.svg)](https://tridentstack.com/cve/CVE-2009-4635)

HTML

<a href="https://tridentstack.com/cve/CVE-2009-4635"><img src="https://tridentstack.com/cve/badge/CVE-2009-4635.svg" alt="CVE-2009-4635"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.