{"id":"CVE-2026-52749","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-52749","generatedAt":"2026-10-28T06:34:12.664Z","title":"The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests.","description":"The Kaon AR2140X router improperly issues session cookies in responses to unauthenticated HTTP requests. This vulnerability allows a remote attacker to obtain a valid session identifier without providing credentials, resulting in an authentication bypass. With this access, the attacker can perform unauthorized actions on upgrade-related functionalities. These actions can be abused to force the router to issue GET requests to arbitrarily chosen domains.\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":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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-287"],"affected":[],"epss":{"score":0.00262,"percentile":0.17865,"date":"2026-10-27","history":[{"date":"2026-09-29","score":0.00262,"percentile":0.16157}]},"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 (0.26%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T13:17:22.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-09-28T13:17:22.007Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"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-2026-52749","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."}