CVE-2018-11714

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

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

CVSS v2.0

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

68.05% 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

References

• CVE Record
• NVD entry

Related

• CVE-2018-11711
• CVE-2018-11715
• CVE-2018-11709
• CVE-2018-11716
• CVE-2018-11698
• CVE-2018-11717