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CVE-2021-27424

5.3 · MEDIUM

GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide.

Published Mar 23, 2022CWE-200EPSS 0.88%

Overview

CVE-2021-27424 is a medium-severity vulnerability. It was published on March 23, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.

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

CISAwww.cisa.gov/uscert/ics/advisories/icsa-21-075-02Refwww.gegridsolutions.com/Passport/Login.aspxCISAwww.cisa.gov/uscert/ics/advisories/icsa-21-075-02Refwww.gegridsolutions.com/Passport/Login.aspx

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27424?

CVE-2021-27424 is a medium-severity vulnerability. It was published on March 23, 2022 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2021-27424?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-27424?

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-2021-27424?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27424 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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