CVE-2020-37102 Adaware Web Companion 4.9.2159 - 'WCAssistantService' Unquoted Service Path

High 8.5 Published Updated

Local attackers can execute arbitrary code with LocalSystem privileges by exploiting an unquoted service path in Adaware Web Companion.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-37102?

CVE-2020-37102 is a high-severity vulnerability in Lavasoft Web Companion, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Adaware Web Companion 4.9.2159 contains an unquoted service path vulnerability in the WCAssistantService that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted binary path to inject malicious executables that will be run with LocalSystem privileges during service startup.

Weakness: CWE-428

Which versions are affected by CVE-2020-37102?

How do I fix CVE-2020-37102?

No fix has been published for CVE-2020-37102 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-37102 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37102 exists.

Sources

Also known as GHSA-7g96-p22m-8mmj.

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