CVE-2021-39971Network attack vector

Unauthenticated Password Vault information disclosure

Published Jan 3, 2022 · Updated Aug 4, 2024

Information disclosure in Huawei HarmonyOS 2.0 Password Vault allows remote attackers to expose protected data via unspecified network requests. Huawei has not published the affected setting, request path, or operation that lets external input control Password Vault configuration. The public assessment identifies no authentication or user-interaction requirement and limits the documented consequence to confidentiality, without claiming data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.67%
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 HarmonyOS 2.0 Password Vault allows remote attackers to expose protected data via unspecified network requests. Huawei has not published the affected setting, request path, or operation that lets external input control Password Vault configuration. The public assessment identifies no authentication or user-interaction requirement and limits the documented consequence to confidentiality, without claiming data modification or service interruption.

The record

CVE
CVE-2021-39971
Published
Jan 3, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-668, T1555
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 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=2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0

Published CVSS scores

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

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-668Exposure of Resource to Wrong Sphere
T1555Credentials from Password Stores

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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