Description
A command injection vulnerability has been identified in the Telnet command-line interface (CLI) of TP-Link TL-MR6400 v5.3. This issue is caused by insufficient sanitization of data processed during specific CLI operations. An authenticated attacker with elevated privileges may be able to execute arbitrary system commands. Successful exploitation may lead to full device compromise, including potential loss of confidentiality, integrity, and availability.
References (2)
Core 2
Core References
Various Sources patch
https://www.tp-link.com/en/support/download/tl-mr6400/v5.30/#Firmware
Various Sources vendor-advisory
https://www.tp-link.com/us/support/faq/5016/
Scores
CVSS v3
8.8
EPSS
0.0074
EPSS Percentile
73.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
Status
published
Products (1)
tp-link/tl-mr6400_firmware
< 1.9.0
Published
Mar 12, 2026
Tracked Since
Mar 13, 2026