CVE-2006-0539
The convert-fcrontab program in fcron 3.0.0 might allow local users to gain privileges via a long command-line argument, which causes…
- 4.6MediumCVSS base score
- 0.78%Exploitation in 30 daysEPSS · top 44% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The convert-fcrontab program in fcron 3.0.0 might allow local users to gain privileges via a long command-line argument, which causes Linux glibc to report heap memory corruption, possibly because a strcpy in the strdup2 function can "overwrite some data."
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Fcron 3.0 - Convert-FCronTab Local Buffer Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 27159dos, multiplepublished 1 Feb 2006Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 19 years later
· 19 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 | Medium4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 0.78% · top 44% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.6.
Affected products
n/a
- affected n/a
References
References10
- 20060201 Fcrontab - memory corruption on heap. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://fcron.free.fr/news.php#a20060206a.xml (opens in a new tab)x_refsource_CONFIRMx_transferred
- fcron-syslog-bo(24444) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20060201 Fcrontab - memory corruption on heap. (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- ADV-2006-0435 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 2006-0036 (opens in a new tab)vendor-advisoryx_refsource_TRUSTIXx_transferred
- 18719 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 16467 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugs.trustix.org/show_bug.cgi?id=1754 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://fcron.free.fr/doc/en/changes.html (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)
- EUVD EUVD-2006-0546 (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-2006-0539)Record last updated .