CVE-2026-22220

Medium

Description

A lack of proper input validation in the HTTP processing path in TP-Link Archer BE230 v1.2 (web modules) may allow a crafted request to cause the device’s web service to become unresponsive, resulting in a denial of service condition. A network adjacent attacker with high privileges could cause the device’s web interface to temporarily stop responding until it recovers or is rebooted. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

SeverityMedium

CVSS4.5

Exploit probability—

Product

Tp-link Archer Be230 Firmware

PublishedFeb 3, 2026

First seenFeb 3, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

tp-link archer_be230_firmware1.2.4 or later

Patches

Vendor advisories

tp-link.com/us/support/faq/4941/

Affected products

Product	Affected versions	Fixed in
tp-link archer_be230_firmware	v < 1.2.4	1.2.4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.