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CVE-2011-0021

29
FAUCET Score

CVE-2011-0021 describes multiple heap-based buffer overflows in the CDG decoder of VideoLAN VLC Media Player before version 1.1.6. This critical vulnerability, with a CVSS score of 9.3, allows remote attackers to cause a denial of service or potentially execute arbitrary code through a crafted CDG video. Despite its high severity and potential for complete compromise (C:C/I:C/A:C), there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.5CPE matchmatch criteria
cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*
0.1.99bCPE matchmatch criteria
cpe:2.3:a:videolan:vlc_media_player:0.1.99b:*:*:*:*:*:*:*
0.1.99eCPE matchmatch criteria
cpe:2.3:a:videolan:vlc_media_player:0.1.99e:*:*:*:*:*:*:*
0.1.99fCPE matchmatch criteria
cpe:2.3:a:videolan:vlc_media_player:0.1.99f:*:*:*:*:*:*:*
0.1.99gCPE matchmatch criteria
cpe:2.3:a:videolan:vlc_media_player:0.1.99g:*:*:*:*:*:*:*

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
5.78%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0578 is in the 64th percentile among its peer group of 8,920 CVEs.

Social Chatter

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

download.videolan.org / pub/videolan/vlc/1.1.6/vlc-1.1.6.tar.bz2
Patch
git.videolan.org
openwall.com / lists/oss-security/2011/01/19/6
openwall.com / lists/oss-security/2011/01/20/3
Patch
exchange.xforce.ibmcloud.com / vulnerabilities/64879
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12460
securityfocus.com / bid/45927
vupen.com / english/advisories/2011/0185
Vendor Advisory