CVE-2018-11714

9.8 criticalEPSS 67%

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.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 67% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWE: CWE-384
Published: 2018-06-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tp-link:tl-wr840n_firmware
tp-link:tl-wr841n_firmware

References

http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/
https://www.exploit-db.com/exploits/44781/
http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/
https://www.exploit-db.com/exploits/44781/

Check your stack JSON