CVE-2026-13121

Published Aug 20, 2026

Last updated 2 days ago

Overview

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-29220.
Source
zdi-disclosures@trendmicro.com
NVD status
Received

Risk scores

CVSS 3.0

Type
Secondary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

zdi-disclosures@trendmicro.com
CWE-749

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.