CVE-2021-20487

Description

IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory ibmcloud.com Vendor Advisory ibm.com
Affected: IBM Power 9 Systems
Published at:
Updated at:

References

Link Tags
https://www.ibm.com/support/pages/node/6455911 vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/197730 vdb entry vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20487?
CVE-2021-20487 has been scored as a critical severity vulnerability.
How to fix CVE-2021-20487?
To fix CVE-2021-20487, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20487 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20487 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20487?
CVE-2021-20487 affects IBM Power 9 Systems.
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