CVE-2021-45523 : Security Advisory and Response

NETGEAR R7000 devices before version 1.0.9.42 are susceptible to a buffer overflow vulnerability that can be exploited by an authenticated user.

Understanding CVE-2021-45523

This CVE involves a buffer overflow issue in NETGEAR R7000 devices that allows an authenticated user to execute arbitrary code.

What is CVE-2021-45523?

CVE-2021-45523 is a medium-severity vulnerability in NETGEAR R7000 devices, potentially leading to a denial of service or unauthorized code execution.

The Impact of CVE-2021-45523

The vulnerability can result in a high impact on the availability of affected systems, with the potential for unauthorized code execution.

Technical Details of CVE-2021-45523

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in NETGEAR R7000 devices before 1.0.9.42 allows an attacker to trigger a buffer overflow through authenticated network access.

Affected Systems and Versions

Affected System: NETGEAR R7000 devices
Affected Versions: Before 1.0.9.42

Exploitation Mechanism

The buffer overflow can be exploited by an authenticated user to execute arbitrary code on the affected device.

Mitigation and Prevention

Steps to mitigate the CVE-2021-45523 vulnerability.

Immediate Steps to Take

Update NETGEAR R7000 devices to version 1.0.9.42 or later.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware and software on all network devices.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches provided by NETGEAR promptly to address the vulnerability.