CVE-2025-27521

Local service-data disclosure via improper permissions

Published Mar 4, 2025 · Updated Sep 18, 2025

Improper permission handling in Huawei HarmonyOS 5.0.0 allows local users to disclose service data through the process management module. Huawei identifies improper access permission handling in that module but has not disclosed the affected operation or input path. Local access is required, and the reported consequence is exposure of service information.

CVSS severity6.8
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission handling in Huawei HarmonyOS 5.0.0 allows local users to disclose service data through the process management module. Huawei identifies improper access permission handling in that module but has not disclosed the affected operation or input path. Local access is required, and the reported consequence is exposure of service information.

The record

CVE
CVE-2025-27521
Published
Mar 4, 2025
Updated
Sep 18, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-276, CWE-280
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 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=5.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.0.0

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.8Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/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.

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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-280Improper Handling of Insufficient Permissions or Privileges

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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