CVE-2019-17662: Cybelsoft Thinvnc

Critical severity, CVSS 9.8. EPSS: 96.8% chance of exploitation in the next 30 days.

ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file that can be read via a ../../ThinVnc.ini directory traversal attack vector.

Affected products

• Cybelsoft Thinvnc: version 1.0 only

Published 2019-10-16. Last modified 2026-06-17.