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CVE-2026-4962

Estado: AnalizadaMedia (6.4)—

A security flaw has been discovered in UltraVNC up to 1.6.4.0. Affected by this issue is some unknown functionality in the library version.dll of the component Service. The manipulation results in uncontrolled search path. The attack needs to be approached locally. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Uvnc — Ultravnc

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-4962",
  "cveTags": [],
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          "options": [
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              "exploitation": "poc"
            },
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              "automatable": "no"
            },
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          ],
          "version": "2.0.3",
          "timestamp": "2026-03-27T17:42:52.602261Z"
        }
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    "cvssMetricV31": [
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          "scope": "UNCHANGED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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          "cpes": [
            "cpe:2.3:a:ultravnc:ultravnc:*:*:*:*:*:*:*:*"
          ],
          "vendor": "n/a",
          "modules": [
            "Service"
          ],
          "product": "UltraVNC",
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            },
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  "published": "2026-03-27T17:16:31.307",
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        "Permissions Required"
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        "Third Party Advisory",
        "VDB Entry"
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      "source": "cna@vuldb.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
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          "lang": "en",
          "value": "CWE-426"
        },
        {
          "lang": "en",
          "value": "CWE-427"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security flaw has been discovered in UltraVNC up to 1.6.4.0. Affected by this issue is some unknown functionality in the library version.dll of the component Service. The manipulation results in uncontrolled search path. The attack needs to be approached locally. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
    }
  ],
  "lastModified": "2026-06-17T10:57:30.610",
  "configurations": [
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}