CVE-2021-40023Network attack vector

Unauthenticated disclosure from secure OS misconfiguration

Published Sep 16, 2022 · Updated Aug 4, 2024

Information disclosure in Huawei EMUI 12.0.0 allows remote attackers to obtain confidential information through the secure OS module. Huawei identifies configuration defects in that module but does not disclose the affected setting, exposed data, or operation that reveals it. NVD assesses network reachability without authentication or user interaction, but no request path, protocol, or prerequisite configuration is public.

CVSS severity7.5
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Huawei EMUI 12.0.0 allows remote attackers to obtain confidential information through the secure OS module. Huawei identifies configuration defects in that module but does not disclose the affected setting, exposed data, or operation that reveals it. NVD assesses network reachability without authentication or user interaction, but no request path, protocol, or prerequisite configuration is public.

The record

CVE
CVE-2021-40023
Published
Sep 16, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
EMUI
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2022CVE 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?

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

  1. Affected versionversion=12.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=12.0.0

Published CVSS scores

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

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

No sourced classifications are available.

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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