CVE-2025-5191
Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)
- Published
- Updated
- Reserved
- Assigned by
- Moxa
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| MoxaCNA (assigner) | 4.0 | High7.3 | 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 |
| NVDNVD · Deferred | 4.0 | High7.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.
Weakness
Affected products
Moxa · Utility for DRP-A100 Series
- affected 1.0 – ≤ 1.1
- unaffected 1.2
Moxa · Utility for DRP-A100 Series
- affected 1.0
- unaffected 1.1
Moxa · Utility for DRP-C100 Series
- affected 1.0 – ≤ 1.1
- unaffected 1.2
Moxa · Utility for DRP-C100 Series
- affected 1.0
- unaffected 1.1
What to do
Solution: Moxa has developed appropriate solutions to address this vulnerability. The solutions for the affected products are listed in the security advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-256421-cve-2025-5191-unquoted-search-path-vulnerability-in-the-utility-for-industrial-computers-(windows)
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-5191)Record last updated .