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CVE-2012-0856

14
FAUCET Score

CVE-2012-0856 describes a heap-based buffer overflow in the MPV_frame_start function of FFmpeg versions prior to 0.9.1, specifically when the lowres option is enabled. This vulnerability allows remote attackers to cause a denial of service (application crash) through a crafted H263 media file. With a CVSS score of 2.6, it has a network attack vector and high attack complexity, leading to a partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:0.3:*:*:*:*:*:*:*
0.3.1CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:0.3.1:*:*:*:*:*:*:*
0.3.2CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:0.3.2:*:*:*:*:*:*:*
0.3.3CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:0.3.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

AV:N/AC:H/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.71%
Probability of exploitation in next 30 days
EPSS Percentile
74.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0171 is in the 64th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

asteriskpatch availablevia llm_extracted
Fixed in: null
View patch
bitbucketpatch availablevia llm_extracted
elementpatch availablevia llm_extracted
jfrogpatch availablevia llm_extracted

Vendor Advisories (4)

jfrogllm-jfrog-204050bd0b73abd2

FFmpeg h263dec: Fix regression / crash with lowres.

asteriskllm-asterisk-5a2e8b60167c9cb0

Fix regression / crash with lowres.

bitbucketllm-bitbucket-893bff38d6c21518

Regression / crash with lowres in h263dec

elementllm-element-1995dd13418b1cf1

Fix regression / crash with lowres in h263dec

References

ffmpeg.org / security.html
ffmpeg.org / trac/ffmpeg/ticket/757
Exploit
git.videolan.org
exchange.xforce.ibmcloud.com / vulnerabilities/78928
openwall.com / lists/oss-security/2012/02/01/11
openwall.com / lists/oss-security/2012/02/14/4