Huawei HarmonyOS PDF Preview Module Null Pointer Dereference Vulnerability

A null pointer dereference vulnerability has been identified in the PDF preview module of Huawei HarmonyOS. This vulnerability exists in HarmonyOS versions 5.1.0 and 5.0.1. Successful exploitation of this issue may lead to a denial of service by causing a crash or instability in the application.

Impact

Exploitation of this vulnerability can cause application instability, potentially leading to a crash or disruption of the PDF preview function.

Remediation

Users can refer to the Huawei security bulletin for July 2025 for guidance on applying the latest security updates.