CVE-2026-0539

{
  "id": "CVE-2026-0539",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-22T14:16:30.317",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect Default Permissions in pcvisit service binary on Windows allows a low-privileged local attacker to escalate their privileges by overwriting the service binary with arbitrary contents. This service binary is automatically launched with NT\\SYSTEM privileges on boot. This issue affects all versions after 22.6.22.1329 and was fixed in 25.12.3.1745."
    },
    {
      "lang": "es",
      "value": "Permisos predeterminados incorrectos en el binario del servicio pcvisit en Windows permiten a un atacante local con pocos privilegios escalar sus privilegios sobrescribiendo el binario del servicio con contenido arbitrario. Este binario de servicio se inicia automáticamente con privilegios NT\\SYSTEM al arrancar. Este problema afecta a todas las versiones posteriores a 22.6.22.1329 y se solucionó en 25.12.3.1745."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "pcvisit",
          "product": "pcvisit Remote Host Modul",
          "defaultStatus": "unknown",
          "platforms": [
            "Windows"
          ],
          "versions": [
            {
              "version": "22.6.22.1329",
              "lessThan": "25.12.3.1745",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "22.6.22.1329",
              "versionType": "custom",
              "status": "unaffected"
            },
            {
              "version": "25.12.3.1745",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 8.5,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-22T14:06:45.464940Z",
          "id": "CVE-2026-0539",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://labs.infoguard.ch/advisories/cve-2026-0539_pcvisit_local-privilege-escalation/",
      "source": "[email protected]"
    },
    {
      "url": "https://www.pcvisit.de/kundenbereich/release-notes",
      "source": "[email protected]"
    }
  ]
}