Servers and applications
CVE-2009-4634
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.
- Severity
- High 10.0
- Published
- 10 Feb 2010
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 7.2% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
- Weakness
- CWE-189
- Attack
- Over the network · No login needed
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg |
|