CVE-2026-4937
Medium
Description
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 could allow a local attacker with administrative privileges to decrypt encrypted data due to certain hypervisor calls utilizing less entropy than requested.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Ibm Power System S1122 \(9824-22a\) Firmware
PublishedAug 19, 2026
First seenAug 19, 2026
Weakness typeCWE-331CWE-331
How to fix
Update
- ibm power_system_s1122_\(9824-22a\)_firmwarefw1110.31 or later
- ibm power_system_s1124_\(9824-42a\)_firmwarefw1110.31 or later
- ibm power_system_s1122s_\(9824-22b\)_firmwarefw1110.31 or later
- ibm power_system_s1114_\(9824-41b\)_firmwarefw1110.31 or later
- ibm power_system_l1122_\(9856-22h\)_firmwarefw1110.31 or later
- ibm power_system_l1124_\(9856-42h\)_firmwarefw1110.31 or later
- ibm power_system_e1150_\(9043-mru\)_firmwarefw1110.31 or later
- ibm power_system_e1080_\(9080-hex\)_firmwarefw1060.81 or later
- ibm power_system_s1022_\(9105-22a\)_firmwarefw1060.81 or later
- ibm power_system_s1024_\(9105-42a\)_firmwarefw1060.81 or later
- ibm power_system_s1022s_\(9105-22b\)_firmwarefw1060.81 or later
- ibm power_system_s1014_\(9105-41b\)_firmwarefw1060.81 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm power_system_s1122_\(9824-22a\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_s1124_\(9824-42a\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_s1122s_\(9824-22b\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_s1114_\(9824-41b\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_l1122_\(9856-22h\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_l1124_\(9856-42h\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_e1150_\(9043-mru\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_e1080_\(9080-hex\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_s1022_\(9105-22a\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_s1024_\(9105-42a\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_s1022s_\(9105-22b\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_s1014_\(9105-41b\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_l1022_\(9786-22h\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_l1024_\(9786-42h\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_e1050_\(9043-mrx\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_s1012_\(9028-21b\)_firmware | fw1060.00 ≤ v < fw1060.81 | fw1060.81 |
| ibm power_system_e1180_\(9080-heu\)_firmware | fw1110.00 ≤ v < fw1110.31, fw1120.00 | fw1110.31 |
| ibm power_system_s922_\(9009-22g\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_h922_\(9223-22s\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_s914_\(9009-41g\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_s924_\(9009-42g\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_h924_\(9223-42s\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_e950_\(9040-mr9\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
| ibm power_system_e980_\(9080-m9s\)_firmware | fw950.00 ≤ v < fw950.h3 | fw950.h3 |
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