CVE-2021-37000

Local data disclosure and modification

Published Dec 28, 2024 · Updated Dec 28, 2024

Improper permission management in Huawei HarmonyOS 2.0 wearables allows local users to read and modify protected service data. Huawei has not published the affected component or the permission-management operation that mishandles access control. Exploitation requires local access but no existing privileges or user interaction, and it affects confidentiality and integrity without interrupting service.

CVSS severity7.7
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper permission management in Huawei HarmonyOS 2.0 wearables allows local users to read and modify protected service data. Huawei has not published the affected component or the permission-management operation that mishandles access control. Exploitation requires local access but no existing privileges or user interaction, and it affects confidentiality and integrity without interrupting service.

The record

CVE
CVE-2021-37000
Published
Dec 28, 2024
Updated
Dec 28, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-276, CWE-255
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
CWE-255Credentials Management Errors

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo