Is CVE-2026-41970 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-41970 being exploited in the wild.

How severe is CVE-2026-41970?

Medium severity, with a CVSS score of 6.8, published 15 May 2026.

Which products and versions are affected?

Huawei Emui 15.0.0, 14.2.0, 14.0.0, 13.0.0; Huawei Harmonyos 4.3.1, 4.3.0, 4.2.0, 4.0.0, 3.1.0.

Is there a fix for CVE-2026-41970?

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-2026-41970 attacked?

It is attacked from the adjacent network, in an operating system.

Am I affected by CVE-2026-41970?

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-2026-41970: Huawei HarmonyOS out-of-bounds write in distributed file system module

CVE-2026-41970 · Severity: medium · CVSS 6.8 · Published 2026-05-15

A security vulnerability has been identified in the distributed file system module of Huawei mobile devices and smartwatches. This component is responsible for managing files across different connected devices. If exploited, this flaw could allow an attacker to disrupt the device's stability or cause it to crash, potentially impacting the availability of the device and its services.

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

Quick answers

Is CVE-2026-41970 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-41970 being exploited in the wild.
How severe is CVE-2026-41970?: Medium severity, with a CVSS score of 6.8, published 15 May 2026.
Which products and versions are affected?: Huawei Emui 15.0.0, 14.2.0, 14.0.0, 13.0.0; Huawei Harmonyos 4.3.1, 4.3.0, 4.2.0, 4.0.0, 3.1.0.
Is there a fix for CVE-2026-41970?: 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-2026-41970 attacked?: It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2026-41970?: 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

An out-of-bounds write vulnerability (CWE-787) exists in the distributed file system module of Huawei's HarmonyOS and EMUI operating systems. The vulnerability is triggered when the system writes data outside the boundaries of the intended memory buffer. An attacker with adjacent network access and low-level privileges can exploit this to cause memory corruption. The primary impact of successful exploitation is a denial-of-service condition affecting system availability, though minor impacts to confidentiality and integrity are also possible according to the CVSS vector. Patches were released in the May 2026 security update.

Affected products

Huawei HarmonyOS 4.3.1, 4.3.0, 4.2.0, 4.0.0, 3.1.0
Huawei EMUI 15.0.0, 14.2.0, 14.0.0, 13.0.0

Timeline

2026-05-07: other: Advisory updated by vendor
2026-05-15: disclosed: NVD publication date

References

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