CVE-2026-16828

Analyzed Analyzed - Analysis Complete

Denial of Service in IBM Power Systems Firmware

Publication date: 2026-08-19

Last updated on: 2026-08-25

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.

CVSS Scores

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Meta Information

Published

2026-08-19

Last Modified

2026-08-25

Generated

2026-09-09

AI Q&A

2026-08-19

EPSS Evaluated

2026-09-07

NVD

CVE-2026-16828

EUVD

EUVD-2026-62687

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	power_system_e1080_(9080-hex)_firmware	From fw1060.00 (inc) to fw1060.81 (exc)
ibm	power_system_e1180_(9080-heu)_firmware	From fw1110.00 (inc) to fw1110.31 (exc)
ibm	power_system_e1180_(9080-heu)_firmware	fw1120.00
ibm	power_system_s922_(9009-22g)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_h922_(9223-22s)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_s914_(9009-41g)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_s924_(9009-42g)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_h924_(9223-42s)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_e950_(9040-mr9)_firmware	From fw950.00 (inc) to fw950.h3 (exc)
ibm	power_system_e980_(9080-m9s)_firmware	From fw950.00 (inc) to fw950.h3 (exc)

Helpful Resources

Exploitability

CWE

KEV

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

Attack-Flow Graph

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.

Compliance Impact

This vulnerability primarily impacts system integrity and availability by allowing unauthenticated attackers to crash the ASMI web interface, potentially causing sustained loss of access. While it does not directly expose data, prolonged unavailability of management interfaces could hinder compliance monitoring and incident response, which may affect adherence to standards like GDPR (requiring timely breach detection) and HIPAA (requiring system availability for protected health information access).

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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