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UltraVNC Viewer

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CNA

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1

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Related CVEsRelated VendorsRelated AssignersReports
1Vulnerabilities found
CVE-2020-37134
Assigner-VulnCheck
ShareView Details
Assigner-VulnCheck
CVSS Score-4.6||MEDIUM
EPSS-0.04% / 10.94%
||
7 Day CHG~0.00%
Published-05 Feb, 2026 | 16:13
Updated-05 Feb, 2026 | 20:47
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
UltraVNC Viewer 1.2.4.0 - 'VNCServer' Denial of Service

UltraVNC Viewer 1.2.4.0 contains a denial of service vulnerability that allows attackers to crash the application by manipulating VNC Server input. Attackers can generate a malformed 256-byte payload and paste it into the VNC Server connection dialog to trigger an application crash.

Action-Not Available
Vendor-UltraVNC Team
Product-UltraVNC Viewer
CWE ID-CWE-770
Allocation of Resources Without Limits or Throttling