{"id":"CVE-2026-52749","title":"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 auth…","summary":"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 auth…","severity":"medium","cvss":5.3,"cvssVector":"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","cwe":["CWE-287"],"vendor":"Kaon","product":"AR2140","affected":["AR2140 <= 4.2.17"],"published":"2026-09-28","updated":"2026-09-28","sourceUpdated":"2026-09-28T13:17:22.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52749","references":[{"url":"https://cert.pl/en/posts/2026/09/CVE-2026-52748","label":"cvd@cert.pl"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-28T13:19:12.756407Z"},"cvssSource":"cna","ingestedAt":"2026-09-28T13:09:42.228Z","slug":"CVE-2026-52749","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}