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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

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 Firmware

No data.

No data.

References
Link Providers
https://www.ibm.com/support/pages/node/7283236 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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system. 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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.

Wed, 19 Aug 2026 18:45:00 +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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.
Title Power System Out-of-bounds Write
First Time appeared Ibm
Ibm power Firmware
Weaknesses CWE-787
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': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published: 2026-08-19T18:26:15.404Z

Updated: 2026-08-19T19:04:34.124Z

Reserved: 2026-07-24T15:10:38.607Z

Link: CVE-2026-17100

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T19:17:11.270

Modified: 2026-08-19T19:17:11.270

Link: CVE-2026-17100

cve-icon Redhat

No data.