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CVE-2021-45556

7.5 · HIGH

Certain NETGEAR devices are affected by command injection by an authenticated user.

Published Dec 26, 2021CWE-77EPSS 1.22%

Overview

CVE-2021-45556 is a high-severity vulnerability. It was published on December 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. 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 command injection by an authenticated user. This affects GS108Tv2 before 5.4.2.36, GS110TPP before 7.0.7.2, GS110TPv2 before 5.4.2.36., GS110TPv3 before 7.0.7.2, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.

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/000064534/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Smart-Managed-Pro-Switches-PSV-2021-0175Refkb.netgear.com/000064534/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Smart-Managed-Pro-Switches-PSV-2021-0175

How CyberStrike helps

Frequently asked questions

What is CVE-2021-45556?

CVE-2021-45556 is a high-severity vulnerability. It was published on December 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-45556?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-45556?

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-2021-45556?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-45556 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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