Vulnerability · Published Feb 3, 2026 · Assigned by VulnCheck
CVE-2020-37102Adaware Web Companion 4.9.2159 - 'WCAssistantService' Unquoted Service Path
High 7.8
In plain English
A high-severity security flaw in Web Companion from Lavasoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 96.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Lavasoft | Web Companion | 4.9.2159 |
Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-47852 exploit
- Vendor Homepage product
- Software Download Link product
- VulnCheck Advisory: Adaware Web Companion 4.9.2159 - 'WCAssistantService' Unquoted Service Path third-party-advisory