CVE-2026-11409

EUVD-2026-37499
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.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.2 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 84%
Affected Products (NVD)
VendorProductVersion
tp-linktl-wr940n_firmware
𝑥
< 260528
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware
https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware
https://www.tp-link.com/us/support/faq/5131/