CVE-2020-37132

MEDIUM
2026-02-05 [email protected]
6.2
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 09, 2026 - 22:08 vuln.today
Public exploit code
CVE Published
Feb 05, 2026 - 17:16 nvd
MEDIUM 6.2

Tags

Denial Of Service Ultravnc

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.

Analysis

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. [CVSS 6.2 MEDIUM]

Technical Context

Classified as CWE-121 (Stack-based Buffer Overflow). Affects Ultravnc. 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.

Affected Products

Vendor: Uvnc. Product: Ultravnc.

Remediation

Monitor vendor advisories for a patch.

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +31
POC: +20

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CVE-2020-37132 vulnerability details – vuln.today
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