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EUVD-2026-40884

🗓️ 01 Jul 2026 03:33:26Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 3 Views

UltraVNC viewer 1.8.2.2 heap overflow in RFB failure parsing enables remote code execution.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-7838
1 Jul 202603:33
attackerkb
CVE
CVE-2026-7838
1 Jul 202603:33
cve
Cvelist
CVE-2026-7838 UltraVNC viewer heap buffer overflow via integer overflow in RFB connection-failure reason length
1 Jul 202603:33
cvelist
NVD
CVE-2026-7838
1 Jul 202605:16
nvd
Positive Technologies
PT-2026-54488
1 Jul 202600:00
ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "dbac43a4-7341-3663-81d4-7f231784d4fd",
        "vendor": {
          "name": "Uvnc"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "58a30cf1-11fc-3e91-8117-c8917ec379a1",
        "product": {
          "name": "UltraVNC",
          "vendor": {
            "name": "n/a"
          }
        },
        "product_version": "0 ≤1.8.2.2"
      }
    ]
  }
]

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