CVE-2018-11714
CRITICAL 9.8EPSS 67.1%
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.
- CVSS v3.0 NVD
- 9.8 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 10.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C - EPSS
- 67.06% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2018-06-04
- Updated
- 2024-09-16
Proof-of-concept exploits (3)
- https://www.exploit-db.com/exploits/44781/
- mikelkarma/cve-2018-11714_POC0★ · 2025-07-23
- theace1/tl-wr840PoC11★ · 2021-07-30
Security advisories
- http://blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router
- https://www.exploit-db.com/exploits/44781