CVE-2006-4655
Buffer overflow in the Strcmp function in the XKEYBOARD extension in X Window System X11R6.4 and earlier, as used in SCO UnixWare 7.1.3…
- 4.6MediumCVSS base score
- 0.91%Exploitation in 30 daysEPSS · top 40% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 4Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Buffer overflow in the Strcmp function in the XKEYBOARD extension in X Window System X11R6.4 and earlier, as used in SCO UnixWare 7.1.3 and Sun Solaris 8 through 10, allows local users to gain privileges via a long _XKB_CHARSET environment variable value.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 4 Exploit-DB entries for it.
Show the exploits4
Exploit-DB4 entries
- X11R6 < 6.4 XKEYBOARD (Solaris/SPARC) - Local Buffer Overflow (2) (Exploit-DB entry) (opens in a new tab)
EDB-ID 2360local, solarispublished 13 Sept 2006Verified
- X11R6 < 6.4 XKEYBOARD (Solaris/SPARC) - Local Buffer Overflow (1) (Exploit-DB entry) (opens in a new tab)
EDB-ID 2330local, solarispublished 8 Sept 2006Verified
- X11R6 < 6.4 XKEYBOARD (solaris x86) - Local Buffer Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 2331local, solarispublished 8 Sept 2006Verified
- X11R6 < 6.4 XKEYBOARD (sco x86) - Local Buffer Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 2332local, scopublished 8 Sept 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
- 1 day later
· 1 day later
Published
- 18 years later
· 18 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)
- 0.91% · top 40% 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
References15
- ADV-2006-3529 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 19905 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 102570 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- 20060908 [RISE-2006001] X11R6 XKEYBOARD extension Strcmp() buffer overflow (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1016806 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 21856 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2006-3525 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:1798 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 21815 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 21993 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2006-195.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1545 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 21845 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.risesecurity.org/advisory/RISE-2006001.txt (opens in a new tab)x_refsource_MISCx_transferred
- xorg-libx11-xkeyboard-bo(28820) (opens in a new tab)vdb-entryx_refsource_XFx_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-2006-4643 (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-2006-4655)Record last updated .