UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attackers can paste an overly long string of 300 characters into the Repeater Host property to trigger an application crash.
Exploitability
AV:LAC:LAT:NPR:NUI:AVulnerable System
VC:HVI:NVA:NSubsequent System
SC:NSI:NSA:N6.7/CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NOther