CVE-2021-20487

Published: May 26, 2021

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.0

8.0

HIGH

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.

Vendor	Product	Versions
IBM	Power 9 Systems	affected `FW930` affected `FW940` affected `FW941` affected `OP940`

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/UI:N/I:H/AC:H/PR:H/S:C/A:H/C:H/E:U/RL:O/RC:C

Attack Vector

Network

User Interaction

None

Integrity

High

Attack Complexity

High

Privileges Required

High

Scope

Changed

Availability

High

Confidentiality

High

References

https://www.ibm.com/support/pages/node/6455911

x_refsource_CONFIRM

ibm-power9-cve202120487-priv-escalation (197730)

vdb-entry

x_refsource_XF

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CVE-2021-20487

Description

Affected Products

CVSS v3.0 Details

References