CVE-2012-0851

The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted H.264 file, related to the chroma_format_idc value.

Published: 2012-08-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-0851 is rated Moderate Risk (58.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.23%). EPSS rose +1.07% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-0851

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.17% 3.23% +1.07%
2 2025-09-14 2.42% 2.17% -0.25%
3 2025-03-30 — 2.42% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-0851

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2012-0851

OS Trackers for CVE-2012-0851

vendor priority summary link
debian not yet assigned CVE-2012-0851 not yet assigned priority: Debian including 1 source packages (ffmpeg), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-0851
gentoo normal CVE-2012-0851: 1 GLSA(s) (201210-06), 1 atom(s) (media-video/libav); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-0851
ubuntu low CVE-2012-0851 low priority: Ubuntu including 4 source packages (ffmpeg, ffmpeg-extra, libav, libav-extra), 28 status rows across 7 suites (hardy, lucid, maverick, natty, oneiric, precise, upstream): DNE 13, released 9, ignored 3, needs-triage 3. https://ubuntu.com/security/CVE-2012-0851

Affected software / configurations for CVE-2012-0851

Vendor Product Version Raw CPE
ffmpeg ffmpeg <= 0.9 cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.1 cpe:2.3:a:ffmpeg:ffmpeg:0.7.1:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.2 cpe:2.3:a:ffmpeg:ffmpeg:0.7.2:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.7 cpe:2.3:a:ffmpeg:ffmpeg:0.7.7:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.8 cpe:2.3:a:ffmpeg:ffmpeg:0.7.8:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.9 cpe:2.3:a:ffmpeg:ffmpeg:0.7.9:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.11 cpe:2.3:a:ffmpeg:ffmpeg:0.7.11:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.7.12 cpe:2.3:a:ffmpeg:ffmpeg:0.7.12:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.5 cpe:2.3:a:ffmpeg:ffmpeg:0.8.5:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.6 cpe:2.3:a:ffmpeg:ffmpeg:0.8.6:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.7 cpe:2.3:a:ffmpeg:ffmpeg:0.8.7:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.8 cpe:2.3:a:ffmpeg:ffmpeg:0.8.8:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.10 cpe:2.3:a:ffmpeg:ffmpeg:0.8.10:*:*:*:*:*:*:*
ffmpeg ffmpeg 0.8.11 cpe:2.3:a:ffmpeg:ffmpeg:0.8.11:*:*:*:*:*:*:*
libav libav 0.5 cpe:2.3:a:libav:libav:0.5:*:*:*:*:*:*:*
libav libav 0.5.1 cpe:2.3:a:libav:libav:0.5.1:*:*:*:*:*:*:*
libav libav 0.5.2 cpe:2.3:a:libav:libav:0.5.2:*:*:*:*:*:*:*
libav libav 0.5.3 cpe:2.3:a:libav:libav:0.5.3:*:*:*:*:*:*:*
libav libav 0.5.4 cpe:2.3:a:libav:libav:0.5.4:*:*:*:*:*:*:*
libav libav 0.5.5 cpe:2.3:a:libav:libav:0.5.5:*:*:*:*:*:*:*
libav libav 0.5.6 cpe:2.3:a:libav:libav:0.5.6:*:*:*:*:*:*:*
libav libav 0.5.7 cpe:2.3:a:libav:libav:0.5.7:*:*:*:*:*:*:*
libav libav 0.6 cpe:2.3:a:libav:libav:0.6:*:*:*:*:*:*:*
libav libav 0.6.1 cpe:2.3:a:libav:libav:0.6.1:*:*:*:*:*:*:*
libav libav 0.6.2 cpe:2.3:a:libav:libav:0.6.2:*:*:*:*:*:*:*
libav libav 0.6.3 cpe:2.3:a:libav:libav:0.6.3:*:*:*:*:*:*:*
libav libav 0.6.4 cpe:2.3:a:libav:libav:0.6.4:*:*:*:*:*:*:*
libav libav 0.6.5 cpe:2.3:a:libav:libav:0.6.5:*:*:*:*:*:*:*
libav libav 0.7 cpe:2.3:a:libav:libav:0.7:*:*:*:*:*:*:*
libav libav 0.7.1 cpe:2.3:a:libav:libav:0.7.1:*:*:*:*:*:*:*
libav libav 0.7.2 cpe:2.3:a:libav:libav:0.7.2:*:*:*:*:*:*:*
libav libav 0.7.3 cpe:2.3:a:libav:libav:0.7.3:*:*:*:*:*:*:*
libav libav 0.7.4 cpe:2.3:a:libav:libav:0.7.4:*:*:*:*:*:*:*
libav libav 0.7.5 cpe:2.3:a:libav:libav:0.7.5:*:*:*:*:*:*:*
libav libav 0.8 cpe:2.3:a:libav:libav:0.8:*:*:*:*:*:*:*
libav libav 0.8 cpe:2.3:a:libav:libav:0.8:beta2:*:*:*:*:*:*
libav libav 0.8.1 cpe:2.3:a:libav:libav:0.8.1:*:*:*:*:*:*:*
libav libav 0.8.2 cpe:2.3:a:libav:libav:0.8.2:*:*:*:*:*:*:*

References for CVE-2012-0851

cvelogic Threat Intelligence