CVE-2023-39665 : What You Need to Know

A buffer overflow vulnerability in D-Link DIR-868L fw_revA_1-12_eu_multi_20170316 could allow an attacker to execute arbitrary code or crash the device.

Understanding CVE-2023-39665

This section delves into the specifics of the CVE-2023-39665 vulnerability.

What is CVE-2023-39665?

CVE-2023-39665 refers to a buffer overflow issue found in D-Link DIR-868L fw_revA_1-12_eu_multi_20170316, where the acStack_50 parameter is vulnerable.

The Impact of CVE-2023-39665

The vulnerability could be exploited by a remote attacker to execute malicious code, leading to a device crash or unauthorized access.

Technical Details of CVE-2023-39665

Explore the technical aspects of the CVE-2023-39665 vulnerability.

Vulnerability Description

The buffer overflow vulnerability arises due to improper validation of user-supplied input in the acStack_50 parameter, allowing an attacker to overwrite the buffer and potentially execute arbitrary code.

Affected Systems and Versions

D-Link DIR-868L fw_revA_1-12_eu_multi_20170316 is confirmed to be affected by this vulnerability, impacting devices with this specific firmware version.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious input to overflow the buffer in the acStack_50 parameter, potentially gaining control of the affected device.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2023-39665.

Immediate Steps to Take

Users are advised to update the firmware of D-Link DIR-868L to a patched version provided by the vendor. Additionally, implementing network security measures can help reduce the attack surface.

Long-Term Security Practices

Maintaining up-to-date firmware, regularly monitoring for security advisories, and employing network segmentation are crucial for long-term security.

Patching and Updates

Stay informed about security updates from D-Link and promptly apply patches to ensure the mitigation of CVE-2023-39665.