{
  "id": "CVE-2023-27830",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-04-12T15:15:12.830",
  "lastModified": "2023-04-24T15:59:43.363",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing legitimate files with crafted files when executing a file transfer. This is due to the fact that TightVNC runs in the backend as a high-privileges account."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:tightvnc:tightvnc:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "2.8.75",
              "matchCriteriaId": "521FB7FE-6DDF-44F9-BDFD-0785D8E0093F"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://medium.com/nestedif/vulnerability-disclosure-privilege-escalation-tightvnc-8165208cce",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.tightvnc.com/news.php",
      "source": "cve@mitre.org",
      "tags": [
        "Product",
        "Release Notes"
      ]
    },
    {
      "url": "https://www.tightvnc.com/whatsnew.php",
      "source": "cve@mitre.org",
      "tags": [
        "Product",
        "Release Notes"
      ]
    }
  ]
}