CVE-2020-26652Public exploitNetwork attack vector

Network interruption via crafted authentication frames

Published Aug 22, 2023 · Updated Oct 3, 2024

Denial of service in Aircrack-ng rtl8812au 5.6.4.2 allows attackers to interrupt networking via crafted Wi-Fi frames. A loop of raw open-authentication frames drives the 88XXau join path into rtw_cfg80211_ch_switch_notify, where nl80211_send_chandef raises a kernel warning and networking becomes unavailable. The target must use the affected Linux driver with compatible wireless hardware; the demonstrated consequence is network interruption rather than code execution or data access.

CVSS severity7.5
High
EPSS probability0.74%
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 Aircrack-ng rtl8812au 5.6.4.2 allows attackers to interrupt networking via crafted Wi-Fi frames. A loop of raw open-authentication frames drives the 88XXau join path into rtw_cfg80211_ch_switch_notify, where nl80211_send_chandef raises a kernel warning and networking becomes unavailable. The target must use the affected Linux driver with compatible wireless hardware; the demonstrated consequence is network interruption rather than code execution or data access.

The record

CVE
CVE-2020-26652
Published
Aug 22, 2023
Updated
Oct 3, 2024
Vendor
Aircrack-ng
Product
Aircrack-ng
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 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?

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

  1. Affected versionversion=5.6.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Aircrack-ng · Aircrack-ngversion=5.6.4.2

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

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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