CVE-2022-40865 : What You Need to Know

Tenda AC15 and AC18 routers V15.03.05.19 have been identified to contain heap overflow vulnerabilities in the function setSchedWifi with the request /goform/openSchedWifi/.

Understanding CVE-2022-40865

This section will provide insights into the nature and impact of the CVE-2022-40865 vulnerability.

What is CVE-2022-40865?

The CVE-2022-40865 vulnerability specifically affects Tenda AC15 and AC18 routers running version V15.03.05.19. It involves heap overflow vulnerabilities in the function setSchedWifi with the request /goform/openSchedWifi/.

The Impact of CVE-2022-40865

The impact of CVE-2022-40865 could lead to potential security breaches, allowing threat actors to exploit the routers and gain unauthorized access.

Technical Details of CVE-2022-40865

In this section, we delve deeper into the technical aspects of the CVE-2022-40865 vulnerability.

Vulnerability Description

The vulnerability arises due to heap overflow issues in the setSchedWifi function of Tenda AC15 and AC18 routers, triggered by the /goform/openSchedWifi/ request.

Affected Systems and Versions

Tenda AC15 and AC18 routers running version V15.03.05.19 are affected by this vulnerability.

Exploitation Mechanism

Threat actors can exploit the CVE-2022-40865 vulnerability by sending crafted requests to the setSchedWifi function, causing a heap overflow and potentially gaining unauthorized access.

Mitigation and Prevention

This section outlines the necessary steps to mitigate and prevent exploitation of CVE-2022-40865.

Immediate Steps to Take

Users are advised to update their Tenda AC15 and AC18 routers to the latest firmware version to patch the heap overflow vulnerabilities.

Long-Term Security Practices

In the long term, it is crucial to regularly update router firmware and implement strong network security measures to prevent similar vulnerabilities.

Patching and Updates

Regularly check for firmware updates from Tenda and apply patches promptly to ensure the security of the routers.