CVE-2026-17494
Received Received - Intake

IBM Power Systems Firmware Code Execution Vulnerability

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description
IBM Power Systems Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-17494
EUVD
EUVD-2026-62686

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm power_systems_firmware 1120.00
ibm power_systems_firmware From 1110.00 (inc) to 1110.30 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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Executive Summary

This vulnerability affects IBM Power Systems Firmware due to a flaw in the interface between the Baseboard Management Controller (BMC) and the host system. An attacker with service access to the BMC can send a specially crafted command, causing a stack-based buffer overflow that allows arbitrary code execution on the host system.

Detection Guidance

Detection requires checking the firmware version of IBM Power Systems. Use the BMC interface or host system commands to verify if the firmware is FW1120.00 or FW1110.00 through FW1110.30. Compare the version against the patched versions: FW1110.31(1110_134), FW1120.01(1120_167), or newer.

Impact Analysis

An attacker exploiting this vulnerability could gain full control over the host system and all hosted partitions. This results in a significant confidentiality, integrity, and availability impact, potentially allowing unauthorized access, data theft, system manipulation, or disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, which may violate compliance requirements under GDPR, HIPAA, and other regulations. Organizations could face legal penalties, reputational damage, and loss of trust due to compromised data confidentiality and integrity.

Mitigation Strategies

Install the latest firmware updates immediately. For Power 11 systems, update to FW1110.31(1110_134) or FW1120.01(1120_167). For other models like E1180 or S1122, apply the specific updates provided by IBM. Ensure no workarounds are used as none are available.

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