CVE-2021-41451

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-17 · updated 2026-07-09
Weakness: CWE-444

Description

A misconfiguration in HTTP/1.0 and HTTP/1.1 of the web interface in TP-Link AX10v1 before V1_211117 allows a remote unauthenticated attacker to send a specially crafted HTTP request and receive a misconfigured HTTP/0.9 response, potentially leading into a cache poisoning attack.

Affected products

TP-Link Archer Ax10 Firmware: before v1_211117 — fixed in v1_211117

How to fix

Upgrade to a fixed version: TP-Link Archer Ax10 Firmware v1_211117. Check the vendor advisory for mitigations.

References

https://www.tp-link.com/us/support/download/archer-ax10/v1/#Firmware
https://www.tp-link.com/us/support/download/archer-ax10/v1/#Firmware

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