CVE-2022-46740

Service interruption via malformed Wi-Fi packets

Published Dec 28, 2022 · Updated Apr 11, 2025

Denial of service in the Wi-Fi module of Huawei WS7100-20 firmware 10.0.5.33 allows attackers to interrupt device service via crafted packets. The module incorrectly verifies external messages before processing attacker-supplied packets. Exploitation requires adjacent-network access and no authentication or user interaction; Huawei does not specify whether service loss is a hang, crash, or reboot.

CVSS severity6.5
Medium
EPSS probability0.31%
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 the Wi-Fi module of Huawei WS7100-20 firmware 10.0.5.33 allows attackers to interrupt device service via crafted packets. The module incorrectly verifies external messages before processing attacker-supplied packets. Exploitation requires adjacent-network access and no authentication or user interaction; Huawei does not specify whether service loss is a hang, crash, or reboot.

The record

CVE
CVE-2022-46740
Published
Dec 28, 2022
Updated
Apr 11, 2025
Vendor
Huawei Technologies Co., Ltd.
Product
HUAWEI WiFi AX3 Dual-core
Classifications
CWE-400, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 2025Record 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=10.0.5.33

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HUAWEI WiFi AX3 Dual-coreversion=10.0.5.33

Published CVSS scores

6.5NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0HuaweiCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/RL:O/RC:C
6.5CISA-ADPCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
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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