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CVE-2021-22887

2.3 · LOW

A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000 and PSA7000 could allow an attacker to compromise BIOS firmware.

Published Mar 16, 2021CWE-506EPSS 0.28%

Overview

CVE-2021-22887 is a low-severity vulnerability. It was published on March 16, 2021 and has a CVSS 3.1 base score of 2.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000 and PSA7000 could allow an attacker to compromise BIOS firmware. This vulnerability can be exploited only as part of an attack chain. Before an attacker can compromise the BIOS, they must exploit the device.

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.pulsesecure.net/articles/Pulse_Security_Advisories/SA44712Refwww.supermicro.com/en/support/security/TrickbotRefkb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44712Refwww.supermicro.com/en/support/security/Trickbot

How CyberStrike helps

Frequently asked questions

What is CVE-2021-22887?

CVE-2021-22887 is a low-severity vulnerability. It was published on March 16, 2021 and has a CVSS 3.1 base score of 2.3 (LOW).

How severe is CVE-2021-22887?

This vulnerability has a CVSS 3.1 base score of 2.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-22887?

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-2021-22887?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-22887 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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