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CVE-2012-4436
Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users…
Medium4.4EPSS 0.66%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months 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 | Medium4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.66% · top 48% 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: Medium 4.4.
Weakness
Affected products
n/a
- affected n/a
References (4)
- [oss-security] 20120919 CVE Request -- fwknop 2.0.3: Multiple security issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20120919 Re: CVE Request -- fwknop 2.0.3: Multiple security issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc (opens in a new tab)x_refsource_CONFIRMx_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-2012-4436)Record last updated .