CVE-2019-20640 : What You Need to Know

NETGEAR devices are vulnerable to a stack-based buffer overflow, impacting various models. Unauthorized attackers can exploit this vulnerability.

Understanding CVE-2019-20640

This CVE identifies a critical vulnerability in multiple NETGEAR router models, potentially allowing unauthorized access.

What is CVE-2019-20640?

The CVE-2019-20640 vulnerability involves a stack-based buffer overflow in certain NETGEAR devices, enabling attackers to execute arbitrary code.

The Impact of CVE-2019-20640

The vulnerability poses a high risk, with a CVSS base score of 8.8 (High severity), affecting confidentiality, integrity, and availability.

Technical Details of CVE-2019-20640

NETGEAR devices are susceptible to a stack-based buffer overflow, leading to potential unauthorized access and compromise.

Vulnerability Description

Unauthorized attackers can exploit a stack-based buffer overflow in NETGEAR devices.

Affected Systems and Versions

Models affected include D3600, D6000, D6200, D7000, JR6150, PR2000, R6020, R6050, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, WNR2020, and XR500.

Exploitation Mechanism

Attackers can trigger the vulnerability by sending specially crafted requests to the affected devices.

Mitigation and Prevention

Steps to address and prevent exploitation of the CVE-2019-20640 vulnerability.

Immediate Steps to Take

Update affected devices to the latest firmware versions provided by NETGEAR.
Implement strong network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and security patches on all network devices.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

NETGEAR has released patches addressing the CVE-2019-20640 vulnerability. Ensure timely installation of these updates.