Huawei HarmonyOS Buffer Overflow Vulnerability in Kernel Acceleration Module

A buffer overflow vulnerability has been identified in the kernel acceleration module of Huawei HarmonyOS. This issue arises from inadequate data validation, which could be exploited to disrupt the normal functioning of the service. The vulnerability affects multiple versions of HarmonyOS, including HarmonyOS 4.0.0, 3.1.0, 3.0.0, as well as EMUI versions 14.0.0 and 13.0.0.

Impact

Exploitation of this vulnerability leads to a buffer overflow, which can commonly be exploited to execute arbitrary code or cause a denial-of-service condition by crashing the device or application.

Remediation

Users can refer to the Huawei August 2025 Security Bulletin for guidance on applying the latest security updates that address this vulnerability.