CVE-2017-20218 - CVE House
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Status published High CVE-2017-20218

Serviio PRO 1.8 Local Privilege Escalation via Unquoted Path

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

Affected Vendor

Affected Software

Serviio PRO
Vulnerable Versions:
1.8.0.0 PRO, 1.7.1, 1.7.0, 1.6.1

Timeline

Official Publish: March 15th, 2026
Last Modified: March 16th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)