CVE-2017-20218CWE-428

Serviio PRO 1.8 Local Privilege Escalation via Unquoted Path

High · published March 15, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
3.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
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
EPSS
0.00143 · 3.3th percentile
Weakness
CWE-428 · Unquoted Search Path or Element
Published
2026-03-15T18:34Z
EPSS history
Timeline
  • 15 MAR 18:34Z
    Serviio PRO 1.8 Local Privilege Escalation via Unquoted Path
    cvelistv5