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CVE-2012-5854
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…
High7.5EPSS 5.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
- 7 days later
· 7 days later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 5.5% · top 7.1% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (13)
- 87279 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 56482 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2012-17973 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 51377 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- openSUSE-SU-2013:0150 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://savannah.nongnu.org/bugs/?37704 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20121112 Re: CVE Request -- WeeChat (prior to 0.3.9.1): Heap-based buffer overflow when decoding IRC colors in strings (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0330 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2012:1580 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2012-17950 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://weechat.org/security/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2013:136 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- FEDORA-2012-18006 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-5854)Record last updated .