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EUVD-2026-40883

🗓️ 01 Jul 2026 03:33:25Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

UltraVNC viewer up to 1.8.2.2 has an off-by-one stack overflow in ServerInit name handling that can crash the viewer.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-7831
1 Jul 202603:33
attackerkb
Circl
CVE-2026-7831
1 Jul 202609:08
circl
CVE
CVE-2026-7831
1 Jul 202603:33
cve
Cvelist
CVE-2026-7831 UltraVNC viewer off-by-one stack overflow in ServerInit desktop name parsing
1 Jul 202603:33
cvelist
NVD
CVE-2026-7831
1 Jul 202605:16
nvd
Positive Technologies
PT-2026-54487
1 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-7831 UltraVNC viewer off-by-one stack overflow in ServerInit desktop name parsing
1 Jul 202603:33
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "52f3aa79-f267-3b3e-ae21-27b64c68ab40",
        "vendor": {
          "name": "Uvnc"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "e4efc536-de50-3d53-83e7-bcbfd9567c5e",
        "product": {
          "name": "UltraVNC",
          "vendor": {
            "name": "n/a"
          }
        },
        "product_version": "0 ≤1.8.2.2"
      }
    ]
  }
]

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01 Jul 2026 13:12Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.17.6
SSVC
4