{"id":"CVE-2025-5191","state":"PUBLISHED","title":"Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)","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.","publishedAt":"2025-08-25T08:01:11.035Z","updatedAt":"2025-08-25T13:48:09.418Z","severity":{"score":7.3,"label":"High","version":"4.0","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","source":"Moxa"},"assigner":"Moxa","products":["Moxa Utility for DRP-A100 Series","Moxa Utility for DRP-C100 Series"],"affected":[{"vendor":"Moxa","product":"Utility for DRP-A100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThanOrEqual":"1.1","versionType":"custom"},{"version":"1.2","status":"unaffected","versionType":"custom"}],"platforms":["Windows 10 IoT Enterprise LTSC 2021"]},{"vendor":"Moxa","product":"Utility for DRP-A100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","versionType":"custom"},{"version":"1.1","status":"unaffected","versionType":"custom"}],"platforms":["Windows 11 IoT Enterprise LTSC 2024","Windows 11 Professional 2022"]},{"vendor":"Moxa","product":"Utility for DRP-C100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThanOrEqual":"1.1","versionType":"custom"},{"version":"1.2","status":"unaffected","versionType":"custom"}],"platforms":["Windows 10 IoT Enterprise LTSC 2021"]},{"vendor":"Moxa","product":"Utility for DRP-C100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","versionType":"custom"},{"version":"1.1","status":"unaffected","versionType":"custom"}],"platforms":["Windows 11 IoT Enterprise LTSC 2024","Windows 11 Professional 2022"]}],"references":["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)"],"weaknesses":["CWE-428"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/5xxx/CVE-2025-5191.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-5191","state":"PUBLISHED","datePublished":"2025-08-25T08:01:11.035Z","dateUpdated":"2025-08-25T13:48:09.418Z","assignerShortName":"Moxa","assignerOrgId":"2e0a0ee2-d866-482a-9f5e-ac03d156dbaa","dateReserved":"2025-05-26T05:18:48.345Z"},"containers":{"cna":{"title":"Unquoted Search Path Vulnerability in the Utility for Industrial Computers (Windows)","descriptions":[{"lang":"en","value":"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":[{"vendor":"Moxa","product":"Utility for DRP-A100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThanOrEqual":"1.1","versionType":"custom"},{"version":"1.2","status":"unaffected","versionType":"custom"}],"platforms":["Windows 10 IoT Enterprise LTSC 2021"]},{"vendor":"Moxa","product":"Utility for DRP-A100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","versionType":"custom"},{"version":"1.1","status":"unaffected","versionType":"custom"}],"platforms":["Windows 11 IoT Enterprise LTSC 2024","Windows 11 Professional 2022"]},{"vendor":"Moxa","product":"Utility for DRP-C100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThanOrEqual":"1.1","versionType":"custom"},{"version":"1.2","status":"unaffected","versionType":"custom"}],"platforms":["Windows 10 IoT Enterprise LTSC 2021"]},{"vendor":"Moxa","product":"Utility for DRP-C100 Series","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","versionType":"custom"},{"version":"1.1","status":"unaffected","versionType":"custom"}],"platforms":["Windows 11 IoT Enterprise LTSC 2024","Windows 11 Professional 2022"]}],"references":[{"url":"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)","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-428","description":"CWE-428: Unquoted Search Path or Element","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Moxa","orgId":"2e0a0ee2-d866-482a-9f5e-ac03d156dbaa","dateUpdated":"2025-08-25T08:22:05.944Z"},"credits":[{"lang":"en","type":"finder","value":"Anni Tuulinen"}],"impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233: Privilege Escalation"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

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)

"}],"value":"Moxa has developed appropriate solutions to address this vulnerability. The solutions for the affected products are listed in the security advisory: \n\n 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)"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-08-25T13:48:00.832287Z","id":"CVE-2025-5191","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-08-25T13:48:09.418Z"}}]}}}