CVE-2025-5191 Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)
Local attackers can escalate privileges to SYSTEM by placing a malicious executable in an unquoted search path directory.
- 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-2025-5191?
CVE-2025-5191 is a high-severity vulnerability in Moxa Utility for DRP-A100 Series, published on 25 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Unquoted Search Path vulnerability has been identified in the utility for Moxa’s industrial computers (Windows). Due to the unquoted path configuration in the SerialInterfaceService.exe utility, a local attacker with limited privileges could place a malicious executable in a higher-priority directory within the search path. When the Serial Interface service starts, the malicious executable could be run with SYSTEM privileges. Successful exploitation could allow privilege escalation or enable an attacker to maintain persistence on the affected system. While successful exploitation can severely impact the confidentiality, integrity, and availability of the affected device itself, there is no loss of confidentiality, integrity, or availability within any subsequent systems.
Weakness: CWE-428
Which versions are affected by CVE-2025-5191?
How do I fix CVE-2025-5191?
No fix has been published for CVE-2025-5191 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-5191 being exploited?
There is no known exploitation of CVE-2025-5191 in the wild and no public exploit code.
Sources
Also known as GHSA-x9r8-77rv-89rp.