CVE-2020-37132

MEDIUM EPSS 13.6%
Published Feb 5, 20264mo ago · Modified Jun 17, 20261w ago
6.7 CVSS 4.0
Medium
Find Similar
Published Feb 5, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
13.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-121
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
uvncultravnc* ≤1.2.4.0

References 3

  • exploit-db.com https://www.exploit-db.com/exploits/48290
    ExploitThird Party AdvisoryVDB Entry
  • uvnc.com https://www.uvnc.com/
    Product
  • vulncheck.com https://www.vulncheck.com/advisories/ultravnc-launcher-password-denial-of-service
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.