CVE-2017-20218 HIGH

CVE-2017-20218: Serviio PRO 1.8 Local Privilege Escalation via Unquoted Path

Vendor Serviio
Product Serviio PRO
Weakness CWE-428
Published March 15, 2026
Last update March 16, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Serviio PRO 1.8 contains an unquoted search path vulnerability in the Windows service that allows local users to execute arbitrary code with elevated privileges by placing malicious executables in the system root path. Additionally, improper directory permissions with full access for the Users group allow authenticated users to replace the executable file with arbitrary binaries, enabling privilege escalation during service startup or system reboot.

Key dates

02Disclosure timeline

March 15, 2026 CVE published
March 16, 2026 Record updated