CVE-2020-37132CWE-121

UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service

Medium · published February 5, 2026

CVSS v4.0
6.7
EPSS
0%
Percentile
16.5
In the wild
Unconfirmed
What it is

UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in its password configuration properties that allows local attackers to crash the application. Attackers can paste an overly long 300-character string into the password field to trigger an application crash and prevent normal launcher functionality.

The record
Technical detail
CVSS v4.0
6.7 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00257 · 16.5th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-02-05T16:13Z
EPSS history
Timeline
  • 05 FEB 16:13Z
    UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service
    cvelistv5