CVE-2019-20733 : Security Advisory and Response
Learn about CVE-2019-20733, a vulnerability in certain NETGEAR devices allowing unauthorized attackers to exploit a stack-based buffer overflow. Find out affected models and mitigation steps.
An array-based memory overflow can be exploited by an unauthorized attacker in certain NETGEAR devices.
Understanding CVE-2019-20733
What is CVE-2019-20733?
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. The affected models include D6220, D6400, D7000v2, D8500, and more.
The Impact of CVE-2019-20733
This vulnerability has a CVSS base score of 5.6, with a medium severity rating. It can lead to high confidentiality impact and low integrity impact.
Technical Details of CVE-2019-20733
Vulnerability Description
An array-based memory overflow can be exploited by an unauthorized attacker in certain NETGEAR devices.
Affected Systems and Versions
- D6220 before 1.0.0.44
- D6400 before 1.0.0.78
- D7000v2 before 1.0.0.51
- D8500 before 1.0.3.42
- And several other models
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: High
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices to the specified patched versions.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Conduct security assessments and penetration testing to identify vulnerabilities.
Patching and Updates
Ensure all NETGEAR devices are running the latest firmware versions to mitigate the risk of exploitation.