CVE-2022-25446 Explained : Impact and Mitigation

This article provides insights into CVE-2022-25446, a vulnerability found in Tenda AC6 v15.03.05.09_multi that can lead to a stack overflow exploit.

Understanding CVE-2022-25446

In this section, we will delve into the details of the CVE-2022-25446 vulnerability affecting Tenda AC6 v15.03.05.09_multi.

What is CVE-2022-25446?

The CVE-2022-25446 vulnerability involves a stack overflow issue triggered by the schedstarttime parameter in the openSchedWifi function of Tenda AC6 v15.03.05.09_multi.

The Impact of CVE-2022-25446

This vulnerability can potentially allow threat actors to execute malicious code or crash the device, leading to a denial of service (DoS) condition.

Technical Details of CVE-2022-25446

Let's explore the technical aspects of CVE-2022-25446 to understand its implications further.

Vulnerability Description

The stack overflow in the schedstarttime parameter of the openSchedWifi function can be exploited by attackers to disrupt the normal operation of the Tenda AC6 router.

Affected Systems and Versions

The affected version of Tenda AC6 is v15.03.05.09_multi. Users with this version are at risk of exploitation if the vulnerability is not addressed promptly.

Exploitation Mechanism

By manipulating the schedstarttime parameter, threat actors can overflow the stack, gaining unauthorized access to the router and potentially causing service interruptions.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-25446, users and administrators are advised to take immediate action and implement long-term security measures.

Immediate Steps to Take

Consider disabling remote access to the router if not required
Monitor network traffic for any signs of exploitation

Long-Term Security Practices

Regularly update the router firmware to the latest version

Patching and Updates

Keep an eye on security advisories from Tenda and apply patches promptly to fix the vulnerability.