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CVE-2026-22220

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

Published: Feb 3, 2026Updated: Feb 13, 2026 Sources: CVE List NVDCWE-20
NVD MITRE
4.5CVSSMEDIUM
EPSS Score
0.2%
Top 88.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:HUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

Archer BE230 v1.2TP-Link Systems Inc.Networking Infrastructure
archer be230 firmwaretp-linkNetworking Infrastructure
tp-link systems inc.commercialCNNetworking Infrastructureaka tp-link
tp-linkcommercialTWNetworking Infrastructureaka tp-link, tp link

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.tp-link.com/us/support/download/archer-be230/v1.20/#Firmware
tp-link.com
https://www.tp-link.com/en/support/download/archer-be230/v1.20/#Firmware
tp-link.com
https://www.tp-link.com/sg/support/download/archer-be230/v1.20/#Firmware
tp-link.com
and 1 more references View all →

Timeline

Published
Feb 3, 2026
Last Updated
Feb 13, 2026

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