CVE-2026-19492
Description
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing sensitive data belonging to the hypervisor or other guest partitions hosted on the same system, resulting in a confidentiality impact. The attacker has no control over which memory contents are returned. This vulnerability is of particular concern in multi-tenant environments where guests may run arbitrary OS images.
How to fix
- ibm power_system_s1122_\(9824-22a\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_s1124_\(9824-42a\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_s1122s_\(9824-22b\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_s1114_\(9824-41b\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_l1122_\(9856-22h\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_l1124_\(9856-42h\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_e1150_\(9043-mru\)_firmwarefw1110.32, fw1120.02 or later
- ibm power_system_s1112_\(9242-21b\)_firmwarefw1120.02 or later
- ibm power_system_s1112_\(9242-21t\)_firmwarefw1120.02 or later
- ibm power_system_e1080_\(9080-hex\)_firmwarefw1060.82 or later
- ibm power_system_s1022_\(9105-22a\)_firmwarefw1060.82 or later
- ibm power_system_s1024_\(9105-42a\)_firmwarefw1060.82 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm power_system_s1122_\(9824-22a\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_s1124_\(9824-42a\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_s1122s_\(9824-22b\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_s1114_\(9824-41b\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_l1122_\(9856-22h\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_l1124_\(9856-42h\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_e1150_\(9043-mru\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
| ibm power_system_s1112_\(9242-21b\)_firmware | fw1120.00 ≤ v < fw1120.02 | fw1120.02 |
| ibm power_system_s1112_\(9242-21t\)_firmware | fw1120.00 ≤ v < fw1120.02 | fw1120.02 |
| ibm power_system_e1080_\(9080-hex\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_s1022_\(9105-22a\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_s1024_\(9105-42a\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_s1022s_\(9105-22b\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_s1014_\(9105-41b\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_l1022_\(9786-22h\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_l1024_\(9786-42h\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_e1050_\(9043-mrx\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_s1012_\(9028-21b\)_firmware | fw1060.00 ≤ v < fw1060.82 | fw1060.82 |
| ibm power_system_e1180_\(9080-heu\)_firmware | fw1110.00 ≤ v < fw1110.32, fw1120.00 ≤ v < fw1120.02 | fw1110.32, fw1120.02 |
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