CVE-2017-7393: Tigervnc

High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days.

In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution.

Affected products

• Tigervnc Tigervnc: version 1.7.1 only

Published 2017-04-01. Last modified 2026-06-17.