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CVE-2006-2450

auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in...

7.5 HighFix available

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.

What does this mean?
Severity
7.5 HighCVSS 2.0, NVD
Exploit chance
4.36%EPSS, 91st percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
0.8.2-1libvncserver +2 more

Description

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

4.36%Up 0.6 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libvncserver
Debian:12
before 0.8.2-1
0.8.2-1
libvncserver
Debian:13
before 0.8.2-1
0.8.2-1
libvncserver
Debian:14
before 0.8.2-1
0.8.2-1

What each source reports

NVD Score used7.5

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 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE ListNo 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-2006-2451No 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-wjhmNo 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
OSVNo 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-2006-2450No 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-2024:10598-1No 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

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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