CVE-2026-11409
highpriority · track · 30EPSS 0.028 · 86 %ileEUUSEPSS · scored 2026-10-24
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmwarecnnvd
- https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmwarecnnvd
- https://www.tp-link.com/us/support/faq/5131/cnnvd
- https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmwareenisa_euvd
- https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmwareenisa_euvd
- https://www.tp-link.com/us/support/faq/5131/enisa_euvd
- https://www.tp-link.com/en/support/download/tl-wr940n/v6/#FirmwareProductnvd
- https://www.tp-link.com/us/support/download/tl-wr940n/v6/#FirmwareProductnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan