Is CVE-2026-58558 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-58558 being exploited in the wild.

How severe is CVE-2026-58558?

High severity, with a CVSS score of 7.8, published 15 July 2026.

Which products and versions are affected?

Huawei Emui 14.0.0, 14.2.0, 15.0.0; Huawei Harmonyos 4.0.0, 4.2.0, 4.3.0, 4.3.1.

Is there a fix for CVE-2026-58558?

A patch was published on 2026-07-08: Huawei released security bulletins detailing the fix. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-58558 attacked?

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

Am I affected by CVE-2026-58558?

Check whether you run Huawei Emui or Huawei Harmonyos at an affected version. 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-2026-58558: Huawei HarmonyOS and EMUI permission control vulnerability in file system

CVE-2026-58558 · Severity: high · CVSS 7.8 · Published 2026-07-15

A security vulnerability has been identified in the file system of Huawei mobile devices and smart screens. This flaw could allow an attacker to bypass standard permission controls, potentially leading to the unauthorized access or modification of sensitive user data. Successful exploitation could compromise the confidentiality and integrity of information stored on the device.

Technologies: Huawei Emui, Huawei Harmonyos. Vendors: Huawei.

Quick answers

Is CVE-2026-58558 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-58558 being exploited in the wild.
How severe is CVE-2026-58558?: High severity, with a CVSS score of 7.8, published 15 July 2026.
Which products and versions are affected?: Huawei Emui 14.0.0, 14.2.0, 15.0.0; Huawei Harmonyos 4.0.0, 4.2.0, 4.3.0, 4.3.1.
Is there a fix for CVE-2026-58558?: A patch was published on 2026-07-08: Huawei released security bulletins detailing the fix. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-58558 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-58558?: Check whether you run Huawei Emui or Huawei Harmonyos at an affected version. 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

A permission control vulnerability exists within the file system component of Huawei's HarmonyOS and EMUI. Classified as a business logic error (CWE-840), the flaw allows for the bypass of intended access restrictions. The attack vector is local, requiring a user to perform a specific action (User Interaction: Required) to trigger the exploit. If successful, an attacker can achieve high impact across confidentiality, integrity, and availability. The vulnerability affects multiple versions of HarmonyOS (4.0.0 through 4.3.1) and EMUI (14.0.0 through 15.0.0). Patches were released as part of the July 2026 security update.

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

2026-07-08: patched: Huawei released security bulletins detailing the fix.
2026-07-15: disclosed: CVE record published and NVD dataset updated.

References

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