CVE-2026-17504: This Power System update is being released to address

Published Sep 23, 2026
·
Updated

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition firmware runtime. An attacker with root access to a partition can send a specially crafted request to the partition firmware runtime, causing it to crash with possible memory corruption.

Other sources

Power Systems Firmware is affected by a vulnerability in the partition firmware runtime. An attacker with root access to a partition can send a specially crafted request to the partition firmware runtime, causing it to crash with possible memory corruption

— IBM

Affected Software

5 affected components
IBM PowerVM Hypervisor>=FW1120.00<=FW1120.01, >=FW1110.00<=FW1110.31, >=FW1060.00<=FW1060.81, >=FW950.00<=FW950.H3
IBM PowerVM Hypervisor<=FW1120.00 - FW1120.01
IBM PowerVM Hypervisor<=FW1110.00 - FW1110.31
IBM PowerVM Hypervisor<=FW1060.00 - FW1060.81
IBM PowerVM Hypervisor<=FW950.00 - FW950.H3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1060.82Patch 1060_189
  2. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1110.32Patch 1110_138
  3. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1120.02Patch 1120_171
  4. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1110.32Patch 1110_160
  5. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1120.02Patch 1120_195
  6. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW950.H4Patch 950_236
  7. Upgrade

    Upgrade IBM Power Systems Firmware to a version that resolves this vulnerability.

    Fixed in FW1060.82Patch 1060_199

Event History

Sep 23, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Sep 24, 2026
CVE Published
via MITRE·02:07 PM
Data Sourced
via MITRE·02:07 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·02:17 PM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

Who can exploit this issue?

An attacker needs root access to an affected partition. The provided information does not indicate that unprivileged users or remote unauthenticated attackers can trigger it.

2

What is the likely impact of successful exploitation?

A specially crafted request to the partition firmware runtime can cause it to crash and may result in memory corruption. The listed impact includes loss of availability and integrity impact, with no confidentiality impact stated.

3

Which firmware levels are affected?

Affected levels are FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3.

Company

Resources

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