CVE-2011-1775
5.8 · MEDIUMOverview
CVE-2011-1775 is a medium-severity vulnerability affecting tigervnc tigervnc. It was published on May 26, 2011 and has a CVSS 2.0 base score of 5.8 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2011-1775?
CVE-2011-1775 is a medium-severity vulnerability affecting tigervnc tigervnc. It was published on May 26, 2011 and has a CVSS 2.0 base score of 5.8 (MEDIUM).
How severe is CVE-2011-1775?
This vulnerability has a CVSS 2.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2011-1775?
Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2011-1775?
CyberStrike's AI-powered security agents can automatically detect CVE-2011-1775 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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