{"id":"CVE-2025-2026","state":"PUBLISHED","title":"The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web","description":"The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition.\n\nAn authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.","publishedAt":"2025-12-31T07:32:26.427Z","updatedAt":"2025-12-31T16:07:29.435Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"Moxa"},"assigner":"Moxa","products":["Moxa NPort 6100-G2/6200-G2 Series"],"affected":[{"vendor":"Moxa","product":"NPort 6100-G2/6200-G2 Series","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","versionType":"custom"},{"version":"1.1.0","status":"unaffected","versionType":"custom"}]}],"references":["https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series"],"weaknesses":["CWE-170"],"ingestedAt":"2026-10-29T20:08:55.257Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/2xxx/CVE-2025-2026.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-2026","state":"PUBLISHED","datePublished":"2025-12-31T07:32:26.427Z","dateUpdated":"2025-12-31T16:07:29.435Z","assignerShortName":"Moxa","assignerOrgId":"2e0a0ee2-d866-482a-9f5e-ac03d156dbaa","dateReserved":"2025-03-06T02:21:13.887Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition.\n\nAn authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service."}],"affected":[{"vendor":"Moxa","product":"NPort 6100-G2/6200-G2 Series","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","versionType":"custom"},{"version":"1.1.0","status":"unaffected","versionType":"custom"}]}],"references":[{"url":"https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-170","description":"CWE-170: Improper Null Termination","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Moxa","orgId":"2e0a0ee2-d866-482a-9f5e-ac03d156dbaa","dateUpdated":"2025-12-31T07:32:26.427Z"},"credits":[{"lang":"en","type":"finder","value":"Cory YH Tseng"}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153: Input Data Manipulation"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">NPort 6100-G2/6200-G2 Series</span><br><ul><li>Update to firmware&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">v1.1.0 or later</span></li></ul>"}],"value":"NPort 6100-G2/6200-G2 Series\n  *  Update to firmware v1.1.0 or later"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-31T16:07:24.186121Z","id":"CVE-2025-2026","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-31T16:07:29.435Z"}}]}}}