CVE-2026-18263

Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability

State
Published
Severity
7.8 High
Published
Aug 20, 2026
Updated
Aug 26, 2026
Reserved
Jul 29, 2026

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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.

Scores

CVSSScoreVectorSource
3.07.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hzdi

Weaknesses

  • CWE-749 Exposed Dangerous Method or Function

Affected Products

ProductVersions
RAS ClientParallels
  • 21.0.26296Affected

References

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