CVE-2012-5854

high
Published 2012-11-19 · Modified 2026-04-29
CVSS v3
CVSS v2
7.5
VIR risk
7.5

Description

Heap-based buffer overflow in WeeChat 0.3.6 through 0.3.9 allows remote attackers to cause a denial of service (crash or hang) and possibly execute arbitrary code via crafted IRC colors that are not properly decoded.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2012-5854

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://weechat.org/security/

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed0.3.9.1-1
debian debianbullseyefixed0.3.9.1-1
debian debianforkyfixed0.3.9.1-1
debian debiansidfixed0.3.9.1-1
debian debiantrixiefixed0.3.9.1-1

Application impact

VendorProductVersionsFixed
flashtuxweechat0.3.6
flashtuxweechat0.3.7
flashtuxweechat0.3.8
flashtuxweechat0.3.9

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.