IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Ibm
  • Power Systems Firmware

No data.

No data.

References
Link Providers
https://www.ibm.com/support/pages/node/7283218 cve-icon cve-icon
History

Wed, 19 Aug 2026 19:15:00 +0000

Type Values Removed Values Added
Description IBM Power Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact. IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.
First Time appeared Ibm power Systems Firmware
CPEs cpe:2.3:o:ibm:power_firmware:fw1060.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1060.80:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1110.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1110.30:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw950.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw950.h2:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:op940.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:op940.a1:*:*:*:*:*:*:*		 cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:op940.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_systems_firmware:op940.a1:*:*:*:*:*:*:*
Vendors & Products Ibm power Firmware
Ibm power Systems Firmware

Wed, 19 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description IBM Power Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.
Title Power System Incorrect Authorization
First Time appeared Ibm
Ibm power Firmware
Weaknesses CWE-863
CPEs cpe:2.3:o:ibm:power_firmware:fw1060.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1060.80:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1110.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1110.30:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw1120.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw950.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:fw950.h2:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:op940.00:*:*:*:*:*:*:*
cpe:2.3:o:ibm:power_firmware:op940.a1:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm power Firmware
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H'}
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published: 2026-08-19T18:40:44.642Z

Updated: 2026-08-19T19:02:29.834Z

Reserved: 2026-07-25T06:21:59.387Z

Link: CVE-2026-17429

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-19T19:17:11.543

Modified: 2026-08-20T13:03:39.393

Link: CVE-2026-17429

cve-icon Redhat

No data.