CVE-2023-27830

Published Apr 12, 2023

Last updated 16 days ago

CVSS critical 9.0

Overview

Description: 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.
Source: cve@mitre.org
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 9
Impact score: 6
Exploitability score: 2.3
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-269
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-269

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:tightvnc:tightvnc:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "521FB7FE-6DDF-44F9-BDFD-0785D8E0093F",
            "versionEndExcluding": "2.8.75"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References