CVE-2025-36194: This Power System update is being released to address

Published Jan 26, 2026
·
Updated

IBM PowerVM Hypervisor FW1110.00 through FW1110.03, FW1060.00 through FW1060.51, and FW950.00 through FW950.F0 may expose a limited amount of data to a peer partition in specific shared processor configurations during certain operations.

Other sources

IBM PowerVM hypervisor may expose a limited amount of data to a peer partition in specific shared processor configurations during certain operations.

— IBM

Affected Software

37 affected components
IBM PowerVM Hypervisor<=FW1110.00 - FW1110.03
IBM PowerVM Hypervisor<=FW1060.00 - FW1060.51
IBM PowerVM Hypervisor<=FW950.00 - FW950.F0
IBM PowerVM Hypervisor=fw950.00
IBM PowerVM Hypervisor=fw950.10
IBM PowerVM Hypervisor=fw950.11
IBM PowerVM Hypervisor=fw950.20
IBM PowerVM Hypervisor=fw950.30
IBM PowerVM Hypervisor=fw950.40
IBM PowerVM Hypervisor=fw950.50
IBM PowerVM Hypervisor=fw950.60
IBM PowerVM Hypervisor=fw950.70
IBM PowerVM Hypervisor=fw950.71
IBM PowerVM Hypervisor=fw950.80
IBM PowerVM Hypervisor=fw950.90
IBM PowerVM Hypervisor=fw950.a0
IBM PowerVM Hypervisor=fw950.b0
IBM PowerVM Hypervisor=fw950.c0
IBM PowerVM Hypervisor=fw950.c1
IBM PowerVM Hypervisor=fw950.c2
IBM PowerVM Hypervisor=fw950.d0
IBM PowerVM Hypervisor=fw950.d1
IBM PowerVM Hypervisor=fw950.e0
IBM PowerVM Hypervisor=fw950.e1
IBM PowerVM Hypervisor=fw950.f0
IBM PowerVM Hypervisor=fw1060.00
IBM PowerVM Hypervisor=fw1060.10
IBM PowerVM Hypervisor=fw1060.12
IBM PowerVM Hypervisor=fw1060.20
IBM PowerVM Hypervisor=fw1060.21
IBM PowerVM Hypervisor=fw1060.40
IBM PowerVM Hypervisor=fw1060.41
IBM PowerVM Hypervisor=fw1060.50
IBM PowerVM Hypervisor=fw1060.51
IBM PowerVM Hypervisor=fw1110.00
IBM PowerVM Hypervisor=fw1110.01
IBM PowerVM Hypervisor=fw1110.03

Remediation

Information

Customers with the products below should install FW1110.10(1110_100), or newer to remediate this vulnerability. Power 11 * IBM Power System E1180 (9080-HEU) Customers with the products below should install FW1110.10(1110_116), or newer to remediate this vulnerability. Power 11 * IBM Power System S1122 (9824-22A) * IBM Power System S1124 (9824-42A) * IBM Power System S1122s (9824-22B) * IBM Power System S1114 (9824-41B) * IBM Power System L1122 (9856-22H) * IBM Power System L1124 (9856-42H) * IBM Power System E1150 (9043-MRU) Customers with the products below should install FW1060.52(1060_153)/FW1060.60(1060_158), or newer to remediate this vulnerability. Power 10 * IBM Power System E1080 (9080-HEX) Customers with the products below should install FW1060.52(1060_149), FW1060.60(1060_157), or newer to remediate this vulnerability. Power 10 * IBM Power System S1022 (9105-22A) * IBM Power System S1024 (9105-42A) * IBM Power System S1022s (9105-22B) * IBM Power System S1014 (9105-41B) * IBM Power System L1022 (9786-22H) * IBM Power System L1024 (9786-42H) * IBM Power System E1050 (9043-MRX) * IBM Power System S1012 (9028-21B)  Customers with the products below should install 950.F1(950_194)/950.G0(950_203), or newer to remediate this vulnerability. Power 9 * IBM Power System L922 (9008-22L) * IBM Power System S922 (9009-22A, 9009-22G) * IBM Power System H922 (9223-22H, 9223-22S) * IBM Power System S914 (9009-41A, 9009-41G) * IBM Power System S924 (9009-42A, 9009-42G) * IBM Power System H924 (9223-42H, 9223-42S) * IBM Power System E950 (9040-MR9) * IBM Power System E980 (9080-M9S)

Event History

Jan 26, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Feb 2, 2026
CVE Published
via MITRE·10:01 PM
Data Sourced
via MITRE·10:01 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·11:15 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2025-36194?

CVE-2025-36194 is classified as a moderate severity vulnerability affecting certain versions of IBM PowerVM Hypervisor.

2

How do I fix CVE-2025-36194?

To fix CVE-2025-36194, it is recommended to apply the latest firmware updates supplied by IBM for the affected versions.

3

What versions of PowerVM Hypervisor are affected by CVE-2025-36194?

CVE-2025-36194 affects IBM PowerVM Hypervisor versions FW1110.00 through FW1110.03, FW1060.00 through FW1060.51, and FW950.00 through FW950.F0.

4

What risk does CVE-2025-36194 pose to system data?

CVE-2025-36194 could potentially expose a limited amount of data to a peer partition under specific shared processor configurations during certain operations.

5

Who should be concerned about CVE-2025-36194?

Organizations using the affected versions of IBM PowerVM Hypervisor should evaluate their exposure to CVE-2025-36194 and take appropriate measures to mitigate the risk.

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Contact

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