CVE-2020-26117

Published September 27th, 2020

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CVSS v3

8.1

HIGH

CVSS v2

5.8

MEDIUM

Affected

PROJECT

Description

In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.

TigerVNC/tigervnc

High performance, multi-platform VNC client and server

GitHub

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