CVE-2019-20755 : What You Need to Know

A stack-based buffer overflow vulnerability affects multiple NETGEAR devices, potentially exploited by authorized users.

Understanding CVE-2019-20755

This CVE identifies a critical security issue in various NETGEAR devices due to a stack-based buffer overflow vulnerability.

What is CVE-2019-20755?

The vulnerability allows an authenticated user to trigger a stack-based buffer overflow on affected NETGEAR devices, potentially leading to unauthorized access or denial of service.

The Impact of CVE-2019-20755

The vulnerability has a CVSS v3.0 base score of 6.8, indicating a medium severity issue with high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2019-20755

This section provides detailed technical information about the CVE-2019-20755 vulnerability.

Vulnerability Description

The vulnerability arises from a stack-based buffer overflow in certain NETGEAR devices when accessed by authenticated users.

Affected Systems and Versions

The following NETGEAR devices are affected by this vulnerability:

D6220 versions prior to 1.0.0.46
D6400 versions prior to 1.0.0.80
D7000v2 versions prior to 1.0.0.51
D8500 versions prior to 1.0.3.42
and more (refer to the raw data for the full list).

Exploitation Mechanism

Authorized users can exploit this vulnerability to execute arbitrary code or disrupt the normal operation of the affected devices.

Mitigation and Prevention

Protecting systems from CVE-2019-20755 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by NETGEAR for the affected devices.
Monitor network traffic for any signs of exploitation.
Restrict access to vulnerable devices to authorized personnel only.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

NETGEAR has released patches to address the CVE-2019-20755 vulnerability. Ensure all affected devices are updated with the latest firmware to mitigate the risk of exploitation.