Is CVE-2026-28553 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-28553 being exploited in the wild.

How severe is CVE-2026-28553?

Medium severity, with a CVSS score of 6.9, published 13 April 2026.

Which products and versions are affected?

Huawei HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1; Huawei EMUI 14.0.0, 14.2.0, 15.0.0.

Is there a fix for CVE-2026-28553?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-28553 attacked?

It is attacked with local access, in an operating system.

Am I affected by CVE-2026-28553?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-28553: Huawei HarmonyOS and EMUI improper permission control in theme setting module

CVE-2026-28553 · Severity: medium · CVSS 6.9 · Published 2026-04-13

A security vulnerability exists in the theme setting module of Huawei mobile devices. This flaw could allow an attacker to bypass intended permission controls, potentially leading to the unauthorized disclosure of sensitive service information. Users are advised to apply the April 2026 security updates to protect their devices.

Quick answers

Is CVE-2026-28553 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-28553 being exploited in the wild.
How severe is CVE-2026-28553?: Medium severity, with a CVSS score of 6.9, published 13 April 2026.
Which products and versions are affected?: Huawei HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1; Huawei EMUI 14.0.0, 14.2.0, 15.0.0.
Is there a fix for CVE-2026-28553?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-28553 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-28553?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper permission control vulnerability (CWE-275) exists in the theme setting module of Huawei's HarmonyOS and EMUI operating systems. The vulnerability is characterized by a high attack complexity and requires user interaction, typically occurring via a local attack vector. Successful exploitation allows an attacker to bypass access controls, impacting the confidentiality of the service and potentially causing minor impacts to integrity and availability. The issue is addressed in the Huawei April 2026 security bulletin.

Affected products

Huawei HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1
Huawei EMUI 14.0.0, 14.2.0, 15.0.0

Timeline

2026-04-13: disclosed
2026-04-13: advisory: Huawei published the security bulletin.

References

https://consumer.huawei.com/en/support/bulletin/2026/4/

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