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.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 09 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Uvnc
Uvnc ultravnc
Weaknesses CWE-787
CPEs cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*
Vendors & Products Uvnc
Uvnc ultravnc

Fri, 06 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Ultravnc
Ultravnc ultravnc
Vendors & Products Ultravnc
Ultravnc ultravnc

Thu, 05 Feb 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 05 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title UltraVNC Launcher 1.2.4.0 - 'Password' Denial of Service
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.7, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-05T18:44:00.778Z

Reserved: 2026-02-03T16:27:45.306Z

Link: CVE-2020-37132

cve-icon Vulnrichment

Updated: 2026-02-05T18:43:58.019Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-05T17:16:08.363

Modified: 2026-02-09T22:08:53.663

Link: CVE-2020-37132

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-06T12:05:31Z

Weaknesses