CVE-2026-16828
Received Received - Intake

Denial of Service in IBM Power Systems Firmware

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, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker on the management network can cause the ASMI web server to crash with possible memory corruption and generate an error log; hosted partitions are not affected. The ASMI web interface will restart automatically; however, repeated exploitation could result in a sustained loss of access to the ASMI management interface, resulting in an 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-2026-16828
EUVD
EUVD-2026-62687

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm power_systems_firmware fw1120.00
ibm power_systems_firmware From fw1110.00 (inc) to fw1110.30 (inc)
ibm power_systems_firmware From fw1060.00 (inc) to fw1060.80 (inc)
ibm power_systems_firmware From fw950.00 (inc) to fw950.h2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability affects IBM Power Systems Firmware versions FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2. It involves an out-of-bounds read flaw in the ASMI web interface that allows an unauthenticated attacker on the management network to crash the ASMI web server, potentially causing memory corruption and error logs. Hosted partitions are not affected.

Detection Guidance

Detect this vulnerability by monitoring for crashes in the ASMI web interface or unusual error logs in IBM Power Systems Firmware. Check for repeated ASMI service restarts or memory corruption errors in system logs. Ensure network traffic to the FSP's management interface is inspected for unauthorized access attempts.

Impact Analysis

Repeated exploitation could lead to sustained loss of access to the ASMI management interface, impacting system integrity and availability. The ASMI web interface restarts automatically after crashes, but prolonged attacks may disrupt management functions.

Mitigation Strategies

Immediately restrict network access to the FSP's management interface to prevent unauthenticated attacks. Update affected firmware to the latest patched versions: FW1120.01(1120_167), FW1110.31(1110_134), FW1060.81(1060_184), or FW950.H3(950_230) based on your Power System model.

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