CVE-2026-18263

HighCVSS 7.8/10Last modified Oct 18, 2026

Description

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels RAS Client. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the RAS RDP Backend Service. The issue results from an exposed dangerous function. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-28886.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-749

Affected software

No affected versions have been published.

Timeline

Published
Aug 20, 2026
Last modified
Oct 18, 2026
NVD status
Deferred

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CVE-2026-18263: High severity, CVSS 7.8 | Vulnix