CVE-2023-46765 : What You Need to Know

Understanding CVE-2023-46765

This article discusses the details of CVE-2023-46765, a vulnerability related to uncaught exceptions in the NFC module that impacts NFC availability on specific versions of HarmonyOS and EMUI.

What is CVE-2023-46765?

The CVE-2023-46765 vulnerability involves uncaught exceptions in the NFC module that, when successfully exploited, can lead to disruptions in NFC availability.

The Impact of CVE-2023-46765

This vulnerability could potentially be exploited by malicious actors to disrupt NFC functionality on affected devices, impacting communication and data transfer capabilities.

Technical Details of CVE-2023-46765

This section provides a detailed look at the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in uncaught exceptions within the NFC module, allowing attackers to exploit this weakness to interfere with NFC functionality.

Affected Systems and Versions

HarmonyOS: Versions 4.0.0, 3.1.0, 3.0.0, 2.1.0, 2.0.1, 2.0.0 are affected.
EMUI: Versions 13.0.0, 12.0.1, 12.0.0, 11.0.1 are affected.

Exploitation Mechanism

Attackers can exploit the uncaught exceptions in the NFC module to disrupt the normal functioning of NFC capabilities, affecting device-to-device communication.

Mitigation and Prevention

In this section, we discuss the steps to mitigate the CVE-2023-46765 vulnerability and prevent potential exploitation.

Immediate Steps to Take

Apply security patches provided by Huawei promptly to address the vulnerability.
Disable NFC functionality temporarily if not in use to minimize the risk.

Long-Term Security Practices

Regularly monitor security bulletins and updates from Huawei to stay informed about vulnerability fixes.
Implement strict access control measures and network segmentation to limit exposure to potential attacks.

Patching and Updates

Ensure that all affected devices are updated with the latest firmware versions that contain security patches addressing the CVE-2023-46765 vulnerability.