Security Advisory

CVE-2019-25600

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-22 13:38:36
Last updated 2026-03-24 15:14:43
Assigner VulnCheck
State PUBLISHED

Description

UltraVNC Viewer 1.2.2.4 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized string to the VNC Server input field. Attackers can paste a malicious string containing 256 repeated characters into the VNC Server field and click Connect to trigger a buffer overflow that crashes the viewer.