{"id":"CVE-2025-57278","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-57278","generatedAt":"2026-10-28T09:42:21.221Z","title":"This flaw allows an attacker to obtain full administrative access simply by configuring their device to use the same IP address as a previously authenticated user.","description":"The LB-Link BL-CPE300M AX300 4G LTE Router firmware version BL-R8800_B10_ALK_SL_V01.01.02P42U14_06 does not implement proper session handling. After a user authenticates from a specific IP address, the router grants access to any other client using that same IP, without requiring credentials or verifying client identity. There are no session tokens, cookies, or unique identifiers in place. This flaw allows an attacker to obtain full administrative access simply by configuring their device to use the same IP address as a previously authenticated user. This results in a complete authentication bypass.","published":"2025-09-09T19:15:58.000Z","lastModified":"2026-06-17T09:42:59.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":["lb-link/bl-cpe300m firmware"],"epss":{"score":0.00431,"percentile":0.37208,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.lb-link.com/CPE300M-AX300-4G-LTE-Router-pd502775568.html","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://www.zyenra.com/blog/improper-ip-bound-session-authentication-in-lb-link-cpe300m","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-57278","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."}