{"id":"CVE-2026-52748","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-52748","generatedAt":"2026-10-28T02:59:08.926Z","title":"The Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication.","description":"The Kaon AR2140X router contains a vulnerability where the backup functionality is accessible without authentication. This allows an unauthenticated remote attacker to trigger a configuration backup and retrieve it in a form encrypted by a device-specific key. Triggering this function renders the router inoperable for a substantial period of time. \n\n\n\nThis issue was identified in firmware versions up to 4.2.17. Status of newer versions remains unknown.","published":"2026-09-28T13:17:22.000Z","lastModified":"2026-09-28T16:31:16.000Z","status":"Deferred","sourceIdentifier":"cvd@cert.pl","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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/M"},"cwe":["CWE-306"],"affected":[],"epss":{"score":0.00254,"percentile":0.16874,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00254,"percentile":0.15315}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T13:17:22.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-09-28T13:17:21.847Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://cert.pl/en/posts/2026/09/CVE-2026-52748","source":"cvd@cert.pl"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-52748","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."}