CVE-2021-40288Network attack vector

Wireless client disconnection via spoofed authentication frames

Published Dec 7, 2021 · Updated Aug 4, 2024

Denial of service in TP-Link Archer AX10 v1 before V1_211014 allows remote attackers to disconnect connected wireless clients. The WPA2 and WPA3-SAE authentication paths fail to reject adapter-crafted spoofed authentication frames before terminating an established client connection. No credentials or user interaction are required, but exploitation requires a wireless adapter capable of transmitting the crafted frames; the reported consequence is client disconnection.

CVSS severity7.5
High
EPSS probability2.20%
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 AX10 v1 before V1_211014 allows remote attackers to disconnect connected wireless clients. The WPA2 and WPA3-SAE authentication paths fail to reject adapter-crafted spoofed authentication frames before terminating an established client connection. No credentials or user interaction are required, but exploitation requires a wireless adapter capable of transmitting the crafted frames; the reported consequence is client disconnection.

The record

CVE
CVE-2021-40288
Published
Dec 7, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-290, T1498
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:C

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1498Network Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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