{"id":"CVE-2026-10831","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-10831","generatedAt":"2026-10-28T05:02:29.666Z","title":"A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port.","description":"A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port. The command interface does not properly validate whether a sender is associated with a valid data port session before accepting break signal commands. A remote attacker with network access can send crafted requests to disrupt serial communication for an active user session.","published":"2026-06-16T15:16:34.000Z","lastModified":"2026-06-17T10:12:36.000Z","status":"Awaiting Analysis","sourceIdentifier":"psirt@moxa.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00292,"percentile":0.21604,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262370-cve-2026-10831-improper-authorization-vulnerability-in-serial-device-servers","source":"psirt@moxa.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-10831","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}