CVE-2026-11409

HIGHCVSS 7.2/10EPSS 2.79%

Last modified

CVE-2026-11409 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 2.79% chance of exploitation in the next 30 days.

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.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
Tp-LinkTl-Wr940n Firmware< 260528

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2026-11409?
CVE-2026-11409 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.79% probability of exploitation in the next 30 days.
How do I fix CVE-2026-11409?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST