CVE-2009-4634: ffmpeg Numeric Errors
Vulnerability summary
CVE-2009-4634 is a high (CVSS 10.0) Numeric Errors vulnerability in ffmpeg. EPSS estimates a 7.15% chance of exploitation in the next 30 days, higher than 94.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 10-02-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
7.15%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
-0.06 pp
From 7.21% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (scarybeastsecurity.blogspot.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- ffmpeg< 4:0.5+svn20090706-3
Ffmpeg1 product
- ffmpegEOL0.5
2 vendors · 2 products
References
17 links- roundup.ffmpeg.org/roundup/ffmpeg/issue1240X Refsource MISC
