CVE-2021-40013

Integrity loss via Bluetooth permission control failure

Published Jul 11, 2022 · Updated Aug 4, 2024

Improper permission control in Huawei EMUI and Magic UI Bluetooth modules allows physically proximate attackers to alter protected state. Huawei has not published the affected permission check, the protected operation, or the Bluetooth input that reaches it. Exploitation requires Bluetooth proximity and no prior privileges, and the reported consequence is limited to integrity loss.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission control in Huawei EMUI and Magic UI Bluetooth modules allows physically proximate attackers to alter protected state. Huawei has not published the affected permission check, the protected operation, or the Bluetooth input that reaches it. Exploitation requires Bluetooth proximity and no prior privileges, and the reported consequence is limited to integrity loss.

The record

CVE
CVE-2021-40013
Published
Jul 11, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
EMUI
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 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=10.1.0
  2. Affected versionversion=10.1.1
  3. Affected versionversion=11.0.0
  4. Affected versionversion=12.0.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=10.1.0; version=10.1.1; version=11.0.0; version=12.0.0
MindSpore · Magic UIversion=3.1.0; version=3.1.1; version=4.0.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/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.

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)
Vectoradjacent
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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