Huawei HarmonyOS and EMUI Out-of-Bounds Write Vulnerability in the IMS Module

A high-severity out-of-bounds write vulnerability has been identified in the IMS module of Huawei's HarmonyOS and EMUI. This vulnerability affects several different versions and could lead to availability issues.

Impact

Exploitation of this vulnerability may cause a denial-of-service, disrupting the normal availability of the affected service or application.

Remediation

Users can apply the March 2026 security update, which includes a patch for this vulnerability. Instructions for downloading this update are available on the Huawei support website.