Description
The executable httpd on the TP-Link WR841N V8 router before TL-WR841N(UN)_V8_170210 contained a design flaw in the use of DES for block encryption. This resulted in incorrect access control, which allowed attackers to gain read-write access to system settings through the protected router configuration service tddp via the LAN and Ath0 (Wi-Fi) interfaces.
References (1)
Core 1
Core References
Exploit, Technical Description, Third Party Advisory x_refsource_misc
http://blog.senr.io/blog/cve-2017-9466-why-is-my-router-blinking-morse-code
Scores
CVSS v3
9.8
EPSS
0.0017
EPSS Percentile
38.3%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-327
Status
published
Products (1)
tp-link/wr841n_v8_firmware
< tl-wr841n_v8_140724
Published
Jun 26, 2017
Tracked Since
Feb 18, 2026