{"id":"CVE-2018-11714","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-11714","generatedAt":"2026-10-28T22:21:06.498Z","title":"This issue is caused by improper session handling on the /cgi/ folder or a /cgi file.","description":"An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13 00000013 0.9.1 4.16 v0001.0 Build 170622 Rel.64334n devices. This issue is caused by improper session handling on the /cgi/ folder or a /cgi file. If an attacker sends a header of \"Referer: http://192.168.0.1/mainFrame.htm\" then no authentication is required for any action.","published":"2018-06-04T14:29:01.000Z","lastModified":"2026-06-17T01:36:26.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-384"],"affected":["tp-link/tl-wr840n firmware","tp-link/tl-wr841n firmware"],"epss":{"score":0.67061,"percentile":0.99295,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.31923,"percentile":0.9827},{"date":"2026-09-22","score":0.68053,"percentile":0.99292}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 67.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.68053,"from":0.31923,"percentile":0.99292},"summary":"EPSS moved from 31.9% to 68.1% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.31923,"from":0.68053,"percentile":0.9827},"summary":"EPSS moved from 68.1% to 31.9% probability of exploitation in the next thirty days."}],"references":[{"url":"http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/44781/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44781/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-11714","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."}