CVE-2020-37132 - CVE House
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Status published Medium CVE-2020-37132

UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • chuyreds

References

More from UltraVNC Team

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CVE-2020-37134
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CVE-2020-37133
UltraVNC Launcher 1.2.4.0 - 'RepeaterHost' Denial of Service
Medium 6.7

Affected Vendor

UltraVNC Team

View all reports →

Affected Software

UltraVNC Launcher
Vulnerable Versions:
1.2.4.0

Timeline

Official Publish: February 5th, 2026
Last Modified: February 5th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-121

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact