CVE-2026-25850

Local information disclosure via improper permission preservation

Published May 19, 2026 · Updated May 19, 2026

Improper permission preservation in OpenHarmony 5.0.3 through 6.0 allows local users to disclose sensitive information. OpenHarmony identifies filemanagement_storage_service as the affected component but has not published the object, operation, or permission state preserved incorrectly. Exploitation requires low-privilege local access, needs no user interaction, and has no reported integrity or availability impact.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission preservation in OpenHarmony 5.0.3 through 6.0 allows local users to disclose sensitive information. OpenHarmony identifies filemanagement_storage_service as the affected component but has not published the object, operation, or permission state preserved incorrectly. Exploitation requires low-privilege local access, needs no user interaction, and has no reported integrity or availability impact.

The record

CVE
CVE-2026-25850
Published
May 19, 2026
Updated
May 19, 2026
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-281, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 2026Record 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=v5.0.3 <=v6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=v5.0.3 <=v6.0

Published CVSS scores

5.5OpenHarmonyCVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-281Improper Preservation of Permissions
T1005Data from Local System

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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