ZDI-26-555: Parallels RAS Client RDP Backend Service Exposed Dangerous Function Local Privilege Escalation Vulnerability
ZDI discloses CVE-2026-18262, a CVSS 7.8 exposed dangerous function in Parallels RAS Client's RDP backend service allowing local privilege escalation.
ZDI advisory ZDI-26-555 describes an exposed dangerous function in the Parallels RAS Client RDP backend service, tracked as CVE-2026-18262 with a CVSS score of 7.8. The flaw allows local attackers to escalate privileges on affected installations. Exploitation requires first obtaining the ability to execute low-privileged code on the target system.
- CVE-2026-18262: exposed dangerous function in Parallels RAS Client RDP backend service
- CVSS 7.8 local privilege escalation
- Requires prior low-privileged code execution on target
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-18262 | Local Privilege Escalation in Parallels RAS Client RDP Backend Service | 7.8 | <1% |
From the original article
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 ZDI has assigned a CVSS rating of 7.
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