What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-03 · updated 2026-06-17
• Weakness: CWE-428

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

• Lavasoft Web Companion: 4.9.2159

References

• http://webcompanion.com/
• http://webcompanion.com/LP-WC002/index.php?partner=LU150701WEBDIRECT&campaign=www.doc2pdf.com&search=2&homepage=2&bd=2
• https://www.exploit-db.com/exploits/47852
• https://www.vulncheck.com/advisories/adaware-web-companion-wcassistantservice-unquoted-service-path

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