Heap-based buffer overflow in WeeChat 0.3.6 through 0.3.9 allows remote attackers to…
Priority MEDIUM 41CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.05543 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:flashtux:weechat:0.3.6:*:*:*:*:*:*:* | 0.3.6 | Vulnerable | Flashtux |
| cpe:2.3:a:flashtux:weechat:0.3.7:*:*:*:*:*:*:* | 0.3.7 | Vulnerable | Flashtux |
| cpe:2.3:a:flashtux:weechat:0.3.8:*:*:*:*:*:*:* | 0.3.8 | Vulnerable | Flashtux |
| cpe:2.3:a:flashtux:weechat:0.3.9:*:*:*:*:*:*:* | 0.3.9 | Vulnerable | Flashtux |
- cpe:2.3:a:flashtux:weechat:0.3.6:*:*:*:*:*:*:* Versions 0.3.6 Vulnerable ·Flashtux
- cpe:2.3:a:flashtux:weechat:0.3.7:*:*:*:*:*:*:* Versions 0.3.7 Vulnerable ·Flashtux
- cpe:2.3:a:flashtux:weechat:0.3.8:*:*:*:*:*:*:* Versions 0.3.8 Vulnerable ·Flashtux
- cpe:2.3:a:flashtux:weechat:0.3.9:*:*:*:*:*:*:* Versions 0.3.9 Vulnerable ·Flashtux
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-5854
- 2026-10-03 Alias added: GHSA-rm2r-8wh7-276p
References
Advisory 7
More Flashtux Weechat vulnerabilities
- TI-2012-04652 The hook_process function in the plugin API for WeeChat 0.3.0 through 0.3.9.1 allows… CVSS 2.0HIGH 7.5
- TI-2011-01251 Wee Enhanced Environment for Chat (aka WeeChat) 0.3.4 and earlier does not properly… CVSS 2.0MEDIUM 5.8
- TI-2009-00637 Wee Enhanced Environment for Chat (WeeChat) 0.2.6 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2012-5854 · CVE Program
- CVE-2012-5854 · NVD
- FIRST EPSS
- GHSA-rm2r-8wh7-276p · GitHub Advisory Database · CC BY 4.0
- CVE-2012-5854 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences