Is CVE-2017-20218 actively exploited?

No active exploitation of CVE-2017-20218 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-20218 be exploited remotely?

No. CVE-2017-20218 requires local access to exploit.

What is the CVSS score of CVE-2017-20218?

CVE-2017-20218 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2017-20218

CWE-428Published: March 16, 2026· Updated: Mar 16, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.9th

Official 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.

NVD Source

Technical Analysis

CVE-2017-20218 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.