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CVE-2021-42785

Published: 23 November 2021

Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
tightvnc
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

trusty Not vulnerable

upstream Not vulnerable

xenial Ignored
(out of standard support)