CVE-2021-46836 Explained : Impact and Mitigation

HarmonyOS and EMUI by Huawei are impacted by an information disclosure vulnerability related to WLAN module interfaces, potentially compromising data confidentiality.

Understanding CVE-2021-46836

What is CVE-2021-46836?

The vulnerability involves an information disclosure issue within the WLAN module interfaces, posing a risk to data confidentiality upon exploitation.

The Impact of CVE-2021-46836

Successful exploitation can lead to a breach of data confidentiality, exposing sensitive information to unauthorized entities.

Technical Details of CVE-2021-46836

Vulnerability Description

The vulnerability lies in the WLAN module interfaces, allowing attackers to access confidential data.

Affected Systems and Versions

HarmonyOS 2.0 and 2.1
EMUI 12.0.0

Exploitation Mechanism

Attackers can exploit the vulnerability to gain unauthorized access to sensitive data through the WLAN module interfaces.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches released by Huawei promptly.
Implement network segmentation to restrict access to vulnerable systems.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch systems to defend against known vulnerabilities.
Conduct frequent security audits and assessments to identify and remediate risks.

Patching and Updates

Stay informed about security bulletins and updates from Huawei to promptly address vulnerabilities.