CVE-2026-22228

Device hang via oversized configuration parameter

Published Feb 3, 2026 · Updated Feb 3, 2026

Denial of service in TP-Link Archer BE230 v1.2 before 1.2.4 Build 20251218 rel.70420 allows remote authenticated users to hang the device. The web module accepts an excessively long parameter during configuration restore, but TP-Link has not disclosed which operation exhausts resources. High privileges and network-adjacent management access are required; successful exploitation leaves the router unresponsive until reboot.

CVSS severity6.8
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in TP-Link Archer BE230 v1.2 before 1.2.4 Build 20251218 rel.70420 allows remote authenticated users to hang the device. The web module accepts an excessively long parameter during configuration restore, but TP-Link has not disclosed which operation exhausts resources. High privileges and network-adjacent management access are required; successful exploitation leaves the router unresponsive until reboot.

The record

CVE
CVE-2026-22228
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
TP-Link Systems Inc.
Product
Archer BE230
Classifications
CWE-400, T1499.004
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.2.4 Build 20251218 rel.70420

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · Archer BE230version=0 <1.2.4 Build 20251218 rel.70420

Published CVSS scores

6.8TP-Link Systems Inc.CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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