Unquoted Service Path Vulnerability in Realtek Audio Service
CVE-2020-37252

8.5HIGH

Key Information:

Vendor

Realtek

Status
Realtek Audio Service
Vendor
CVE Published:
19 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37252?

The Realtek Audio Service version 1.0.0.55 is susceptible to an unquoted service path vulnerability. This flaw allows local attackers to escalate their privileges by leveraging the RtkAudioService64.exe executable. By placing malicious files in the unquoted service path, an attacker can execute arbitrary code with LocalSystem privileges during the service's startup or system reboot, thereby potentially compromising the entire system.

Affected Version(s)

Realtek Audio Service 1.0.0.55

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37252 - Proof of Concept

References

https://www.exploit-db.com/exploits/49015
exploit
https://www.realtek.com/en/
product
https://www.vulncheck.com/advisories/realtek-audio-servic...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erika Figueroa
.