CVE-2020-26913 : Security Advisory and Response

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This vulnerability impacts various router models before specific firmware versions.

Understanding CVE-2020-26913

This CVE identifies a stack-based buffer overflow vulnerability affecting multiple NETGEAR router models.

What is CVE-2020-26913?

The CVE-2020-26913 vulnerability involves a stack-based buffer overflow that can be exploited by an authenticated user on certain NETGEAR devices.

The Impact of CVE-2020-26913

The impact of this vulnerability is rated as medium severity with high confidentiality, integrity, and availability impacts. The attack complexity is low, requiring high privileges but no user interaction.

Technical Details of CVE-2020-26913

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is a stack-based buffer overflow that allows an authenticated user to execute arbitrary code on affected NETGEAR devices.

Affected Systems and Versions

The following NETGEAR router models are affected:

D6100 before 1.0.0.63
R7800 before 1.0.2.60
R9000 before 1.0.4.26
and more (refer to the full list in the description)

Exploitation Mechanism

The vulnerability can be exploited by an authenticated user to trigger the buffer overflow and potentially execute malicious code on the affected devices.

Mitigation and Prevention

Protecting against CVE-2020-26913 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of affected devices to the latest versions provided by NETGEAR.
Monitor network traffic for any suspicious activities.
Restrict access to vulnerable devices.

Long-Term Security Practices

Regularly update firmware and security patches on all network devices.
Implement strong authentication mechanisms and access controls.
Conduct regular security audits and penetration testing.

Patching and Updates

NETGEAR has released firmware updates to address the CVE-2020-26913 vulnerability. Ensure all affected devices are promptly updated to the patched versions.