CVE-2020-36957 PDF Complete 3.5.310.2002 - 'pdfsvc.exe' Unquoted Service Path

High 8.5 Published Updated

Attackers can execute malicious code with elevated privileges by exploiting an unquoted service path in PDF Complete.

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-2020-36957?

CVE-2020-36957 is a high-severity vulnerability in Pdf-Complete PDF Complete, published on 26 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

PDF Complete 3.5.310.2002 contains an unquoted service path vulnerability in its pdfsvc.exe service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with elevated LocalSystem privileges.

Weakness: CWE-428

Which versions are affected by CVE-2020-36957?

How do I fix CVE-2020-36957?

No fix has been published for CVE-2020-36957 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-36957 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36957 exists.

Sources

Also known as GHSA-rw4p-54rv-3rrf.

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