CVE-2026-22220
Unknown Unknown - Not Provided
Denial of Service via Input Validation Flaw in TP-Link Archer BE230 Web Module

Publication date: 2026-02-03

Last updated on: 2026-02-13

Assigner: TPLink

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.
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Meta Information
Published
2026-02-03
Last Modified
2026-02-13
Generated
2026-06-16
AI Q&A
2026-02-03
EPSS Evaluated
2026-06-15
NVD
CVE-2026-22220
EUVD
EUVD-2026-5216
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tp-link archer_be230_firmware to 1.2.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

[{'type': 'paragraph', 'content': "The CVE-2026-22220 vulnerability affects the TP-Link Archer BE230 v1.2 router (versions prior to 1.2.4 Build 20251218 rel.70420) and is a medium-severity denial-of-service (DoS) issue caused by improper input validation in the device's HTTP processing path."}, {'type': 'paragraph', 'content': 'A crafted HTTP request can cause the router’s web service to become unresponsive, resulting in a temporary denial-of-service condition.'}, {'type': 'paragraph', 'content': 'An attacker who is network-adjacent and has high privileges can exploit this flaw to cause the device’s web interface to stop responding until it either recovers on its own or is rebooted.'}] [1]

Impact Analysis

This vulnerability can cause the TP-Link Archer BE230 router’s web interface to become temporarily unresponsive, resulting in a denial-of-service condition.

An attacker with network adjacency and high privileges can exploit this to disrupt management access to the device until it recovers or is rebooted.

There are no impacts on confidentiality or integrity, only availability is affected during the DoS condition.

Mitigation Strategies

To mitigate the CVE-2026-22220 vulnerability, it is recommended to update the TP-Link Archer BE230 router to firmware version 1.2.4 or later.

This update addresses the improper input validation issue in the HTTP processing path that can cause the device’s web service to become unresponsive.

Compliance Impact

[{'type': 'paragraph', 'content': "The vulnerability causes a denial-of-service condition by making the device's web service unresponsive temporarily. It does not involve impacts on confidentiality, integrity, or availability beyond the DoS effect."}, {'type': 'paragraph', 'content': 'There is no information provided about how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.'}] [1]

Detection Guidance

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