CVE-2021-22446Network attack vector

Device reset via undisclosed improper verification

Published Aug 2, 2021 · Updated Aug 3, 2024

Improper verification in Huawei EMUI 9.1.0 through 11.0.0 allows remote attackers to reset affected smartphones. Huawei has not disclosed the affected component, the verification operation, or the input that reaches it. No authentication or user action is required according to the published assessment; the documented consequence is a device reset, not disclosed data access.

CVSS severity7.5
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper verification in Huawei EMUI 9.1.0 through 11.0.0 allows remote attackers to reset affected smartphones. Huawei has not disclosed the affected component, the verification operation, or the input that reaches it. No authentication or user action is required according to the published assessment; the documented consequence is a device reset, not disclosed data access.

The record

CVE
CVE-2021-22446
Published
Aug 2, 2021
Updated
Aug 3, 2024
Vendor
MindSpore
Product
EMUI
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 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=10.0.0
  2. Affected versionversion=10.1.0
  3. Affected versionversion=10.1.1
  4. Affected versionversion=11.0.0
  5. Affected versionversion=9.1.0
  6. Affected versionversion=9.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=10.0.0; version=10.1.0; version=10.1.1; version=11.0.0; version=9.1.0; version=9.1.1

Published CVSS scores

7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8NISTAV: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

T1499Endpoint 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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