CVE-2021-45530 : What You Need to Know
Learn about CVE-2021-45530 affecting certain NETGEAR routers with a buffer overflow vulnerability. Find out impact, affected systems, and mitigation steps.
Certain NETGEAR devices are affected by a buffer overflow vulnerability by an authenticated user, impacting various router models.
Understanding CVE-2021-45530
What is CVE-2021-45530?
Certain NETGEAR routers are susceptible to a buffer overflow vulnerability when accessed by an authenticated user.
The Impact of CVE-2021-45530
The vulnerability has a CVSS v3.1 base score of 4.5 (Medium severity) and high availability impact, with no confidentiality or integrity impact. It requires high privileges and has an attack vector of ADJACENT_NETWORK.
Technical Details of CVE-2021-45530
Vulnerability Description
The vulnerability allows an authenticated user to trigger a buffer overflow on affected NETGEAR devices.
Affected Systems and Versions
The following NETGEAR router models are affected:
- R7000 before 1.0.11.126
- R7960P before 1.4.2.84
- R8000 before 1.0.4.74
- RAX200 before 1.0.4.120
- R8000P before 1.4.2.84
- RAX20 before 1.0.2.82
- RAX45 before 1.0.2.82
- RAX80 before 1.0.4.120
- R7900P before 1.4.2.84
- RAX15 before 1.0.2.82
- RAX50 before 1.0.2.82
- RAX75 before 1.0.4.120
Exploitation Mechanism
The vulnerability can be exploited by an attacker with high privileges who triggers a buffer overflow through authenticated access.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches from NETGEAR to fix the vulnerability.
- Avoid unauthorized access to the routers to prevent exploitation.
Long-Term Security Practices
- Regularly update router firmware to stay protected against known vulnerabilities.
Patching and Updates
Ensure to keep NETGEAR router firmware up to date to address security issues.