Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-428.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Moxa | Utility for DRP-A100 Series | 1.0 – 1.1 | 1.2 | Patch available | CNA |
| Moxa | Utility for DRP-A100 Series | 1.0 | 1.1 | Patch available | CNA |
| Moxa | Utility for DRP-C100 Series | 1.0 – 1.1 | 1.2 | Patch available | CNA |
| Moxa | Utility for DRP-C100 Series | 1.0 | 1.1 | Patch available | CNA |
- Utility for DRP-A100 Series VendorMoxa Affected 1.0 – 1.1 Fixed in 1.2 Patch available CNA
- Utility for DRP-A100 Series VendorMoxa Affected 1.0 Fixed in 1.1 Patch available CNA
- Utility for DRP-C100 Series VendorMoxa Affected 1.0 – 1.1 Fixed in 1.2 Patch available CNA
- Utility for DRP-C100 Series VendorMoxa Affected 1.0 Fixed in 1.1 Patch available CNA
Remediation
- Fix · CNA Utility for DRP-A100 Series (Moxa) Fixed in 1.2
- Fix · CNA Utility for DRP-A100 Series (Moxa) Fixed in 1.1
- Fix · CNA Utility for DRP-C100 Series (Moxa) Fixed in 1.2
- Fix · CNA Utility for DRP-C100 Series (Moxa) Fixed in 1.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5191
- 2026-10-03 Alias added: GHSA-x9r8-77rv-89rp
References
More Moxa vulnerabilities
- TI-2021-17455 Hard-coded credentials in Moxa MXView Series CVSS 3.1CRITICAL 9.8
- TI-2010-04465 Stack-based buffer overflow in a certain ActiveX control in MediaDBPlayback.DLL 2.2.0.5… CVSS 2.0HIGH 10.0
- TI-2022-19087 A denial of service vulnerability exists in the web server functionality of Moxa SDS-3008… CVSS 3.1HIGH 7.5
- TI-2016-07634 Missing brute-force protection in Moxa NPort CVSS 3.1CRITICAL 9.8
- TI-2021-17457 Cleartext transmission of sensitive information in Moxa MXView Series CVSS 3.1HIGH 7.5
- TI-2022-19326 Information disclosure in Moxa SDS-3008 Series Industrial Ethernet Switch CVSS 3.1MEDIUM 5.3
Sources
- CVE-2025-5191 · CVE Program
- CVE-2025-5191 · NVD
- FIRST EPSS
- GHSA-x9r8-77rv-89rp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences