VULNERABILITY INTELLIGENCE

CVE-2023-27830

CVSS score9 CRITICAL
EPSS probability1.08%
CISA KEVNot currently listed
Published2023-04-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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.

Weakness classification

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

Primary references