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CVE-2013-0856

23
FAUCET Score

CVE-2013-0856 describes a vulnerability in the lpc_prediction function within FFmpeg's libavcodec/alac.c, affecting FFmpeg versions prior to 1.1. This flaw allows remote attackers to achieve an unspecified impact by providing specially crafted Apple Lossless Audio Codec (ALAC) data, specifically by manipulating the nb_samples value. The vulnerability carries a critical CVSS score of 9.3, indicating a high severity. It can be exploited remotely over the network with medium attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are also minimal, suggesting low public awareness or attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0CPE 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

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 37th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.videolan.org
ffmpeg.org / security.html