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CVE-2021-32928

9.8 · CRITICAL

The Sentinel LDK Run-Time Environment installer (Versions 7.6 and prior) adds a firewall rule named “Sentinel License Manager” that allows incoming connections from private networks using TCP Port…

Published Jun 16, 2021CWE-459EPSS 1.25%

Overview

CVE-2021-32928 is a critical-severity vulnerability. It was published on June 16, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The Sentinel LDK Run-Time Environment installer (Versions 7.6 and prior) adds a firewall rule named “Sentinel License Manager” that allows incoming connections from private networks using TCP Port 1947. While uninstalling, the uninstaller fails to close Port 1947.

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

CISAus-cert.cisa.gov/ics/advisories/icsa-21-159-06CISAus-cert.cisa.gov/ics/advisories/icsa-21-159-06

How CyberStrike helps

Frequently asked questions

What is CVE-2021-32928?

CVE-2021-32928 is a critical-severity vulnerability. It was published on June 16, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2021-32928?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-32928?

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-2021-32928?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-32928 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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