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EUVD-2020-31034

🗓️ 05 Feb 2026 16:13:36Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 3 Views

UltraVNC Viewer 1.2.4.0 denial of service crashes when a malformed 256-byte payload is pasted into the VNC Server dialog.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2020-37134
5 Feb 202616:13
attackerkb
CNNVD
UltraVNC Viewer 安全漏洞
5 Feb 202600:00
cnnvd
CVE
CVE-2020-37134
5 Feb 202616:13
cve
Cvelist
CVE-2020-37134 UltraVNC Viewer 1.2.4.0 - 'VNCServer' Denial of Service
5 Feb 202616:13
cvelist
NVD
CVE-2020-37134
5 Feb 202617:16
nvd
Positive Technologies
PT-2026-6578
5 Feb 202600:00
ptsecurity
Vulnrichment
CVE-2020-37134 UltraVNC Viewer 1.2.4.0 - 'VNCServer' Denial of Service
5 Feb 202616:13
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "004d6484-7fe9-328d-bfb0-d9ef9b0e28d7",
        "vendor": {
          "name": "UltraVNC Team"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "c729e229-a6a4-32b9-bd46-60f594bc7783",
        "product": {
          "name": "UltraVNC Viewer"
        },
        "product_version": "1.2.4.0"
      }
    ]
  }
]

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05 Feb 2026 18:43Current
5.4Medium risk
Vulners AI Score5.4
CVSS 44.6
CVSS 3.17.5
EPSS0.00361
SSVC
3