VULNERABILITY INTELLIGENCE

CVE-2020-37133

CVSS score7.5 HIGH

EPSS probability0.54%

CISA KEVNot currently listed

Published2026-02-05

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

disclosure@vulncheck.com: CWE-121
nvd@nist.gov: CWE-787

Primary references

disclosure@vulncheck.com — Exploit, Third Party Advisory, VDB Entry
disclosure@vulncheck.com — Product
disclosure@vulncheck.com — Third Party Advisory