Unrated severityNVD Advisory· Published May 26, 2011· Updated Jun 16, 2026
CVE-2011-1775
CVE-2011-1775
Description
The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
11- lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.htmlnvd
- openwall.com/lists/oss-security/2011/05/06/2nvd
- openwall.com/lists/oss-security/2011/05/09/7nvd
- secunia.com/advisories/44939nvd
- www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.htmlnvd
- www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.htmlnvd
- www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.htmlnvd
- www.redhat.com/support/errata/RHSA-2011-0871.htmlnvd
- www.securityfocus.com/bid/47738nvd
- bugzilla.redhat.com/show_bug.cginvd
- bugzilla.redhat.com/show_bug.cginvd
News mentions
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