CVE-2026-11409

An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware	Product
https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware	Product
https://www.tp-link.com/us/support/faq/5131/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:tl-wr940n_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr940n:v6:*:*:*:*:*:*:*

History

18 Jun 2026, 18:50

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-17 13:19

Updated : 2026-06-18 18:50

NVD link : CVE-2026-11409

Mitre link : CVE-2026-11409

CVE.ORG link : CVE-2026-11409

JSON object : View

Products Affected

tp-link

tl-wr940n
tl-wr940n_firmware

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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