CVE-2021-42785

Name of the Vulnerable Software and Affected Versions TightVNC Viewer (affected versions not specified)

Description The issue is related to a Buffer Overflow vulnerability in the tvnviewer.exe component of TightVNC Viewer. This vulnerability allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server. The vulnerability is caused by a lack of size checking for input data, which can be exploited by a remote attacker to execute arbitrary code.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.