CVE-2018-11714

CRITICAL EXPLOITED

TP-Link TL-WR840N/TL-WR841N <5 - Info Disclosure

Title source: llm

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.

Exploits (3)

exploitdb WORKING POC
by BlackFog Team · textwebappshardware
https://www.exploit-db.com/exploits/44781
nomisec WORKING POC
by mikelkarma · infoleak
https://github.com/mikelkarma/cve-2018-11714_POC
vulncheck_xdb WORKING POC
infoleak
https://github.com/wiliam227user/CVE-2018-12633-TPLink-Auth-Bypass

Scores

CVSS v3 9.8
EPSS 0.0296
EPSS Percentile 86.5%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

VulnCheck KEV 2025-10-09
CWE
CWE-384
Status published
Products (2)
tp-link/tl-wr840n_firmware 0.9.1_3.16
tp-link/tl-wr841n_firmware 0.9.1_4.16
Published Jun 04, 2018
Tracked Since Feb 18, 2026