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CVE-2021-45525

6.1 · MEDIUM

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user.

Published Dec 26, 2021CWE-120EPSS 0.90%

Overview

CVE-2021-45525 is a medium-severity vulnerability. It was published on December 26, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects EX7000 before 1.0.1.80, R6400 before 1.0.1.50, R6400v2 before 1.0.4.118, R6700 before 1.0.2.8, R6700v3 before 1.0.4.118, R6900 before 1.0.2.8, R6900P before 1.3.2.124, R7000 before 1.0.9.88, R7000P before 1.3.2.124, R7900 before 1.0.3.18, R7900P before 1.4.1.50, R8000 before 1.0.4.46, R8000P before 1.4.1.50, RAX80 before 1.0.1.56, and WNR3500Lv2 before 1.2.0.62.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refkb.netgear.com/000064052/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Extenders-PSV-2018-0618Refkb.netgear.com/000064052/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Extenders-PSV-2018-0618

How CyberStrike helps

Frequently asked questions

What is CVE-2021-45525?

CVE-2021-45525 is a medium-severity vulnerability. It was published on December 26, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2021-45525?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-45525?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-45525?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-45525 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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