CVE-2019-20763 : Security Advisory and Response

Devices of the NETGEAR R7800 model with firmware versions earlier than 1.0.2.52 are vulnerable to a stack-based buffer overflow issue.

Understanding CVE-2019-20763

NETGEAR R7800 devices can be exploited by authenticated users to trigger a buffer overflow vulnerability.

What is CVE-2019-20763?

CVE-2019-20763 is a vulnerability in NETGEAR R7800 devices that allows authenticated users to execute a stack-based buffer overflow.

The Impact of CVE-2019-20763

The vulnerability has a CVSS base score of 6.8, with high impacts on confidentiality, integrity, and availability of affected devices.

Technical Details of CVE-2019-20763

NETGEAR R7800 devices with firmware versions prior to 1.0.2.52 are susceptible to a stack-based buffer overflow.

Vulnerability Description

An authenticated user can exploit the vulnerability to trigger a stack-based buffer overflow on the affected devices.

Affected Systems and Versions

Product: NETGEAR R7800
Versions Affected: Firmware versions earlier than 1.0.2.52

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: High
User Interaction: None

Mitigation and Prevention

Immediate Steps to Take:

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

Long-Term Security Practices

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

Patching and Updates

Apply security patches and firmware updates promptly to mitigate the vulnerability.