CVE-2006-2450 json
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure secur…
published 2006-07-14 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-2451
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.4%
- EPSS 4.4% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.
Patch / fix
- libvncserver Debian 14, Debian 13, Debian 12 0.8.2-1
debian advisories DEBIAN-CVE-2006-2450
Exploit prediction
4.36% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
bugs.debian.org
/cgi-bin/bugreport.cgi?bug=376824
patch
-
sourceforge.net
/project/shownotes.php?release_id=431724&group_id=32584
patch
-
secunia.com
/advisories/20940
third-party-advisory, patch, vendor-advisory
-
libvncserver.cvs.sourceforge.net
/libvncserver/libvncserver/libvncserver/auth.c?r1=1.11&r2=1.14&diff_format=u
patch
-
novell.com
/linux/security/advisories/2006_42_kernel.html
vendor-advisory
-
security.gentoo.org
/glsa/glsa-200608-05.xml
vendor-advisory
-
security.gentoo.org
/glsa/glsa-200703-19.xml
vendor-advisory
-
security.gentoo.org
/glsa/glsa-200608-12.xml
vendor-advisory
-
secunia.com
/advisories/24525
third-party-advisory
-
vupen.com
/english/advisories/2006/2797
vdb-entry
-
secunia.com
/advisories/21349
third-party-advisory
-
secunia.com
/advisories/21393
third-party-advisory
-
secunia.com
/advisories/21405
third-party-advisory
-
securityfocus.com
/bid/18977
vdb-entry
-
secunia.com
/advisories/21179
third-party-advisory
-
securityfocus.com
/archive/1/442986/100/0/threaded
mailing-list
-
seclists.org
/fulldisclosure/2022/May/29
mailing-list
Sources
- CVE List CVE-2006-2450
- NVD CVE-2006-2450
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.