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CVE-2023-39786 Explained : Impact and Mitigation

Discover the details of CVE-2023-39786, a stack overflow vulnerability in Tenda AC8V4 V16.03.34.06, impacting the sscanf function's time parameter, leading to potential code execution risks.

This article discusses the discovery of a stack overflow vulnerability in Tenda AC8V4 V16.03.34.06, impacting the time parameter in the sscanf function.

Understanding CVE-2023-39786

This section provides insights into the nature and implications of the CVE-2023-39786 vulnerability.

What is CVE-2023-39786?

The CVE-2023-39786 vulnerability involves a stack overflow issue found in Tenda AC8V4 V16.03.34.06 due to the time parameter in the sscanf function.

The Impact of CVE-2023-39786

The presence of this vulnerability could potentially lead to exploitation by malicious actors to execute arbitrary code or cause a denial of service (DoS) condition on affected systems.

Technical Details of CVE-2023-39786

This section delves into the specifics of the CVE-2023-39786 vulnerability.

Vulnerability Description

The vulnerability arises from a stack overflow in Tenda AC8V4 V16.03.34.06, triggered by the time parameter within the sscanf function.

Affected Systems and Versions

All versions of Tenda AC8V4 V16.03.34.06 are affected by this vulnerability.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by manipulating the time parameter in the sscanf function to trigger a stack overflow.

Mitigation and Prevention

This section outlines steps to mitigate the CVE-2023-39786 vulnerability and prevent potential security risks.

Immediate Steps to Take

To address this issue, users are advised to apply security patches provided by the vendor promptly.

Long-Term Security Practices

Implementing network segmentation and restricting access to vulnerable services can enhance security posture.

Patching and Updates

Regularly update and patch the affected Tenda AC8V4 V16.03.34.06 devices to avoid exposure to the CVE-2023-39786 vulnerability.

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