CVE-2026-22220
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| tp-link | archer_be230_firmware | to 1.2.4 (exc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
[{'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]
Can you explain this vulnerability to me?
[{'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]
How can this vulnerability impact me? :
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.
What immediate steps should I take to mitigate this vulnerability?
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.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know