CVE-2023-52379Network attack vector

Unauthenticated calendar data disclosure via permission failure

Published Feb 18, 2024 · Updated Mar 18, 2025

Permission-control failure in Huawei HarmonyOS 2.0.0 through 4.0.0 and EMUI 12.0.0 through 13.0.0 allows remote attackers to read calendar data. Huawei has not published which calendarProvider permission check is absent or which service data becomes exposed. Network access is sufficient, with no authentication or user interaction required; the reported consequence is limited to confidentiality.

CVSS severity7.5
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Permission-control failure in Huawei HarmonyOS 2.0.0 through 4.0.0 and EMUI 12.0.0 through 13.0.0 allows remote attackers to read calendar data. Huawei has not published which calendarProvider permission check is absent or which service data becomes exposed. Network access is sufficient, with no authentication or user interaction required; the reported consequence is limited to confidentiality.

The record

CVE
CVE-2023-52379
Published
Feb 18, 2024
Updated
Mar 18, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-276
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record 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=2.0.0
  2. Affected versionversion=2.1.0
  3. Affected versionversion=3.0.0
  4. Affected versionversion=3.1.0
  5. Affected versionversion=4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0.0; version=2.1.0; version=3.0.0; version=3.1.0; version=4.0.0
MindSpore · EMUIversion=12.0.0; version=13.0.0

Published CVSS scores

7.5CISA-ADPCVSS: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-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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