CVE-2021-37030Network attack vector

Service interruption via undisclosed improper permissions

Published Nov 23, 2021 · Updated Aug 4, 2024

Improper permissions in Huawei EMUI allow remote attackers to interrupt smart-charging service via network requests. The affected permission check, operation, and request path have not been disclosed by Huawei, so the concrete mechanism is not public. Network access requires no authentication or user interaction; affected releases are 9.1.0, 9.1.1, 10.0.0, 10.1.0, 10.1.1, and 11.0.0, and impact is limited to service interruption.

CVSS severity7.5
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permissions in Huawei EMUI allow remote attackers to interrupt smart-charging service via network requests. The affected permission check, operation, and request path have not been disclosed by Huawei, so the concrete mechanism is not public. Network access requires no authentication or user interaction; affected releases are 9.1.0, 9.1.1, 10.0.0, 10.1.0, 10.1.1, and 11.0.0, and impact is limited to service interruption.

The record

CVE
CVE-2021-37030
Published
Nov 23, 2021
Updated
Aug 4, 2024
Vendor
MindSpore
Product
EMUI
Classifications
CWE-276
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 23, 2021CVE 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=10.0.0
  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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

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-276Incorrect Default Permissions

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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