Vulnerability · Published Aug 25, 2025 · Assigned by Moxa
CVE-2025-5191Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)
High 7.3
In plain English
A high-severity security flaw in Utility for DRP-A100 Series from Moxa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Moxa | Utility for DRP-A100 Series | 1.0 – through 1.1 |
| Moxa | Utility for DRP-A100 Series | 1.0 |
| Moxa | Utility for DRP-C100 Series | 1.0 – through 1.1 |
| Moxa | Utility for DRP-C100 Series | 1.0 |
Weakness: CWE-428 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N