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CVE-2012-5854

25
FAUCET Score

CVE-2012-5854 describes a heap-based buffer overflow vulnerability in WeeChat versions 0.3.6 through 0.3.9, impacting the flashtux weechat product. This flaw allows remote attackers to trigger a denial of service or potentially execute arbitrary code by sending specially crafted IRC colors that are not correctly processed. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector and low attack complexity, leading to potential confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, and no public exploit code or significant community discussion has been identified for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.3.6CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.6:*:*:*:*:*:*:*
0.3.7CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.7:*:*:*:*:*:*:*
0.3.8CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.8:*:*:*:*:*:*:*
0.3.9CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.54%
Probability of exploitation in next 30 days
EPSS Percentile
92.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0554 is in the 86th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

lists.fedoraproject.org / pipermail/package-announce/2012-November/092228.html
lists.fedoraproject.org / pipermail/package-announce/2012-November/092490.html
lists.fedoraproject.org / pipermail/package-announce/2012-November/092536.html
lists.opensuse.org / opensuse-security-announce/2013-01/msg00018.html
lists.opensuse.org / opensuse-updates/2012-11/msg00087.html
osvdb.org / 87279
secunia.com / advisories/51377
savannah.nongnu.org / bugs
wiki.mageia.org / en/Support/Advisories/MGASA-2012-0330
weechat.org / security
Vendor Advisory
mandriva.com / security/advisories
openwall.com / lists/oss-security/2012/11/12/2
securityfocus.com / bid/56482