CVE-2019-20765 : What You Need to Know

Devices of the NETGEAR R7800 model, specifically those with firmware versions prior to 1.0.2.52, experience a stack-based buffer overflow vulnerability when accessed by an authenticated user.

Understanding CVE-2019-20765

NETGEAR R7800 devices are susceptible to a stack-based buffer overflow vulnerability when operated by an authenticated user.

What is CVE-2019-20765?

CVE-2019-20765 is a vulnerability found in NETGEAR R7800 devices with firmware versions before 1.0.2.52, allowing an authenticated user to trigger a stack-based buffer overflow.

The Impact of CVE-2019-20765

The vulnerability has a CVSS v3.0 base score of 6.8, with high impacts on confidentiality, integrity, and availability. The attack complexity is low, but privileges required are high.

Technical Details of CVE-2019-20765

NETGEAR R7800 devices are affected by a stack-based buffer overflow vulnerability when accessed by an authenticated user.

Vulnerability Description

The vulnerability arises in devices running firmware versions prior to 1.0.2.52, enabling an authenticated user to exploit a stack-based buffer overflow.

Affected Systems and Versions

Product: NETGEAR R7800
Versions Affected: Firmware versions before 1.0.2.52

Exploitation Mechanism

The vulnerability can be exploited by an authenticated user, potentially leading to a stack-based buffer overflow.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-20765 vulnerability.

Immediate Steps to Take

Update affected devices to firmware version 1.0.2.52 or later.
Restrict network access to authorized users only.

Long-Term Security Practices

Regularly monitor for firmware updates and security advisories from NETGEAR.
Implement strong authentication mechanisms and access controls.

Patching and Updates

Apply patches and updates provided by NETGEAR to address the vulnerability.