CVE-2026-11409

HIGH

OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3

Scores

CVSS v3 7.2
EPSS 0.0279
EPSS Percentile 84.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/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 (2)
tp-link/tl-wr940n_firmware < 260528
TP-Link Systems Inc./TL-WR940N v6 < V6_260528
Published Jun 17, 2026
Tracked Since Jun 17, 2026