CVE-2026-17063

Received Received - Intake

IBM Power Systems Firmware Privilege Escalation Vulnerability

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can access and disrupt host processor state, potentially affecting the managed system and all hosted partitions, resulting in an confidentiality, and availability impact.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-19

Last Modified

2026-08-19

Generated

2026-08-20

AI Q&A

2026-08-20

EPSS Evaluated

N/A

NVD

CVE-2026-17063

EUVD

EUVD-2026-62695

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	power_systems_firmware	1120.00
ibm	power_systems_firmware	From 1110.00 (inc) to 1110.30 (inc)
ibm	power_systems_firmware	From 1060.00 (inc) to 1060.80 (inc)
ibm	power_systems_firmware	fw1120.00
ibm	power_systems_firmware	to fw1110.30 (inc)
ibm	power_systems_firmware	to fw1060.80 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability affects IBM Power Systems Firmware in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can access and disrupt the host processor state, potentially impacting the managed system and all hosted partitions. This leads to confidentiality and availability issues.

Detection Guidance

Detection requires checking the firmware version of IBM Power Systems. Use the BMC/FSP interface or host system commands to verify if the installed firmware matches affected versions (FW1120.00, FW1110.00-FW1110.30, FW1060.00-FW1060.80). Compare against recommended updates (FW1110.31+, FW1120.01+, FW1060.81+).

Impact Analysis

An attacker could exploit this flaw to disrupt host processor operations, affecting the entire managed system and all hosted partitions. This may result in unauthorized access to sensitive data (confidentiality impact) and system downtime or instability (availability impact).

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, which may violate compliance requirements under GDPR (data protection) and HIPAA (health information security). Organizations must address this flaw to maintain regulatory compliance.

Mitigation Strategies

Update IBM Power Systems Firmware to the latest versions: FW1110.31 or later, FW1120.01 or later, or FW1060.81 or later depending on your model. Apply the firmware updates provided by IBM to address the vulnerability.

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