CVE-2006-2450
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2006-2450- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2006-2450- Updated
- 2026-11-02
EUVDEUVD-2006-2451 No score
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.
- Record
EUVD-2006-2451- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ghjj-rq7v-wjhm No score
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in...
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.
- Record
GHSA-ghjj-rq7v-wjhm- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2006-2450- Updated
- 2026-11-02
OSVDEBIAN-CVE-2006-2450 No score
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.
- Record
DEBIAN-CVE-2006-2450- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10598-1 No score
LibVNCServer-devel-0.9.13-3.1 on GA media
These are all security issues fixed in the LibVNCServer-devel-0.9.13-3.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10598-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libvncserverDebian:12 |
before 0.8.2-1 | 0.8.2-1 |
libvncserverDebian:13 |
before 0.8.2-1 | 0.8.2-1 |
libvncserverDebian:14 |
before 0.8.2-1 | 0.8.2-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-2450 is a high vulnerability (CVSS 7.5) in Libvncserver, published July 14, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.36%, the 91st percentile. Fixed in libvncserver 0.8.2-1.
References
novell.com/linux/security/advisories/2006_42_kernel.html
bugs.debian.org/cgi-bin/bugreport.cgi?bug=376824
secunia.com/advisories/24525
vupen.com/english/advisories/2006/2797
security.gentoo.org/glsa/glsa-200608-05.xml
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sourceforge.net/project/shownotes.php?release_id=431724&group_id=32584
securityfocus.com/bid/18977
libvncserver.cvs.sourceforge.net/libvncserver/libvncserver/libvncserver/auth.c?r1=1.11&r2=1.14&diff_format=u
seclists.org/fulldisclosure/2022/May/29
nvd.nist.gov/vuln/detail/CVE-2006-2450
github.com/advisories/GHSA-ghjj-rq7v-wjhm
security-tracker.debian.org/tracker/CVE-2006-2450
suse.com/security/cve/CVE-2006-2450