High severity · published Jun 19, 2026
CVE-2020-37252
Realtek Audio Service 1.0.0.55 Unquoted Service Path Privilege Escalation
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Realtek Audio Service · Realtek
1.0.0.55 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-37252
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-37252
www.exploit-db.com
https://www.exploit-db.com/exploits/49015
www.realtek.com
https://www.realtek.com/en/
www.vulncheck.com
https://www.vulncheck.com/advisories/realtek-audio-service-unquoted-service-path-privilege-escalation