High CVSS 7.8

Overview

Parallels Desktop Updater Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability.

The specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
. Was ZDI-CAN-18150.

Risk analysis

This vulnerability is rated 🟠 HIGH.

  • CVSS: 7.8 (HIGH)
  • Detected tags: priv_esc, rce (tag impact: VERY HIGH)

Recommended actions:

  • Fix privilege escalation urgently.
  • Enforce least-privilege and strengthen EDR detection.
  • Patch/upgrade immediately (remote code execution).
  • Reduce exposure (WAF/segmentation), minimize attack surface.

Recommended tools

Tags