CVE-2026-11409
OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N
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.
INFO
Published Date :
June 16, 2026, 9:03 p.m.
Last Modified :
June 16, 2026, 9:03 p.m.
Remotely Exploit :
No
Source :
TPLink
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Update router firmware to the latest version.
- Sanitize all user inputs in the configuration handler.
- Restrict administrative access to trusted users only.
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CVE-2026-11409 vulnerability anywhere in the article.