CVE-2026-28553

Local data disclosure via improper theme permissions

Published Apr 13, 2026 · Updated Apr 13, 2026

Improper permission control in the theme setting module of Huawei EMUI and HarmonyOS allows local users to disclose service data via theme handling. Huawei has not disclosed the affected code locus, the missing permission check, or the theme-setting operation that exposes data. Exploitation requires user interaction and high-complexity local conditions; the reported consequence is confidentiality loss, with only low integrity and availability impact.

CVSS severity6.9
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission control in the theme setting module of Huawei EMUI and HarmonyOS allows local users to disclose service data via theme handling. Huawei has not disclosed the affected code locus, the missing permission check, or the theme-setting operation that exposes data. Exploitation requires user interaction and high-complexity local conditions; the reported consequence is confidentiality loss, with only low integrity and availability impact.

The record

CVE
CVE-2026-28553
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-275
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 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=4.0.0
  2. Affected versionversion=4.2.0
  3. Affected versionversion=4.3.0
  4. Affected versionversion=4.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=4.0.0; version=4.2.0; version=4.3.0; version=4.3.1
MindSpore · EMUIversion=14.0.0; version=14.2.0; version=15.0.0

Published CVSS scores

6.9Huawei TechnologiesCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L
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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-275Permission Issues

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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