CVE-2026-3841
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.
Published:Mar 12, 2026
Last Modified:Apr 2, 2026
EPS:Mar 12, 2026
EPSS Score:0.00952
CVSS Score:8.8
Affected Products
Vendor
Product
Action
Vendor
Tp-link
Product
Tl-mr6400
Tp-link
Tl-mr6400
Vendor
Tp-link
Product
Tl-mr6400 Firmware
Tp-link
Tl-mr6400 Firmware
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
