CVE-2026-22228 Improper Input Validation Leading to DoS on TP-Link Archer BE230

Q: Is CVE-2026-22228 being exploited?

There is no known exploitation of CVE-2026-22228 in the wild and no public exploit code.

Q: How do I fix CVE-2026-22228?

No fix has been published for CVE-2026-22228 yet. Limit exposure of the affected software until one is available.

Medium 6.8 Published 3 Feb 2026 Updated 4 Feb 2026

An authenticated high-privilege user can cause a denial of service on TP-Link Archer BE230 routers by restoring a crafted configuration file.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-22228?

CVE-2026-22228 is a medium-severity denial of service vulnerability in TP-Link Systems Inc. Archer BE230 v1.2, published on 3 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An authenticated user with high privileges may trigger a denial‑of‑service condition in TP-Link Archer BE230 v1.2 by restoring a crafted configuration file containing an excessively long parameter. Restoring such a file can cause the device to become unresponsive, requiring a reboot to restore normal operation. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

Weakness: CWE-400

Which versions are affected by CVE-2026-22228?

It affects 1 product.

Products include Tp-Link Archer Be230 Firmware.

How do I fix CVE-2026-22228?

No fix has been published for CVE-2026-22228 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-22228 being exploited?

There is no known exploitation of CVE-2026-22228 in the wild and no public exploit code.

Sources

Also known as GHSA-qh7q-x454-phcx.