Buffer overflow in Ultravnc Team Launcher
CVE-2020-37132
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.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (13.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Ultravnc Team Launcher — versions 1.2.4.0
- Uvnc Ultravnc
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2020-37132?
- CVE-2020-37132 is a medium-severity vulnerability in Ultravnc Team Launcher, classified under Stack-based Buffer Overflow. CVSS score: 6.2/10. Published 2026-02-05.
- How severe is CVE-2020-37132?
- Medium severity. CVSS v3 base score is 6.2 out of 10.