CVE-2021-22414Network attack vector

Unauthenticated device reset via stack overflow

Published Aug 2, 2021 · Updated Aug 3, 2024

Stack overflow in Huawei EMUI 8.0, 8.2, 9.1.0, and 10.0.0 allows remote attackers to reset affected smartphones. Huawei's bulletin does not identify the affected component, the input that overruns the stack buffer, or the operation that mishandles it. The published network vector requires neither privileges nor user interaction, and the documented consequence is a device reset.

CVSS severity7.5
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Huawei EMUI 8.0, 8.2, 9.1.0, and 10.0.0 allows remote attackers to reset affected smartphones. Huawei's bulletin does not identify the affected component, the input that overruns the stack buffer, or the operation that mishandles it. The published network vector requires neither privileges nor user interaction, and the documented consequence is a device reset.

The record

CVE
CVE-2021-22414
Published
Aug 2, 2021
Updated
Aug 3, 2024
Vendor
MindSpore
Product
EMUI
Classifications
CWE-787, T1499.004
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=8.0
  3. Affected versionversion=8.2
  4. Affected versionversion=9.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=10.0.0; version=8.0; version=8.2; version=9.1.0

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
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.

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

CWE-787Out-of-bounds Write
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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