Local privilege escalation via unquoted service path
Published Jan 13, 2026 · Updated Jan 13, 2026
Unquoted service path handling in WOW 21 5.0.1.9 allows local users to execute arbitrary code with LocalSystem privileges. The WOW21_Service registration stores C:\Program Files\WOW21\WOW21_Service.exe without quotation marks, so Windows can resolve an attacker-controlled executable from an earlier path segment. Exploitation requires local low-privileged access and permission to place a matching executable, with code running when the automatic service starts.
Summary
What happened
Unquoted service path handling in WOW 21 5.0.1.9 allows local users to execute arbitrary code with LocalSystem privileges. The WOW21_Service registration stores C:\Program Files\WOW21\WOW21_Service.exe without quotation marks, so Windows can resolve an attacker-controlled executable from an earlier path segment. Exploitation requires local low-privileged access and permission to place a matching executable, with code running when the automatic service starts.
The record
- CVE
- CVE-2022-50921
- Published
- Jan 13, 2026
- Updated
- Jan 13, 2026
- Vendor
- Il Webmaster 21
- Product
- WOW 21
- Classifications
- CWE-428, T1574.009
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 13, 2026CVE publishedPublication date reported by the CVE source.
- Jan 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.0.1.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- WOW21 5.0.1.9 - Service WOW21_Service Unquoted Service Pathproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo