CVE-2020-37252 Realtek Audio Service 1.0.0.55 Unquoted Service Path Privilege Escalation

High 8.5 Published Updated

Local attackers can escalate privileges to LocalSystem by placing malicious executables in the unquoted service path of Realtek Audio Service.

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-2020-37252?

CVE-2020-37252 is a high-severity vulnerability in Realtek Audio Service, published on 19 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Realtek Audio Service 1.0.0.55 contains an unquoted service path vulnerability in RtkAudioService64.exe that allows local attackers to escalate privileges by injecting malicious code. Attackers can place executable files in the unquoted service path directory to execute arbitrary code with LocalSystem privileges during service startup or system reboot.

Weakness: CWE-428

Which versions are affected by CVE-2020-37252?

How do I fix CVE-2020-37252?

No fix has been published for CVE-2020-37252 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-37252 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37252 exists.

Sources

Also known as GHSA-c8cp-33hr-c24p.

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