medium5.1
CVE-2026-17503
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 vu…
Impact
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 boot configuration. An attacker with root access to a partition can maliciously alter partition nvram, causing the partition to fail to boot. This condition persists until operator intervention — deleting and recreating the partition configuration — to restore normal operation. Successful exploitation results in an integrity and availability impact.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ibm | Power System S1122 \(9824-22a\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System S1124 \(9824-42a\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System S1122s \(9824-22b\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System S1114 \(9824-41b\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System L1122 \(9856-22h\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System L1124 \(9856-42h\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System E1150 \(9043-Mru\) Firmware | from fw1110.00 before fw1110.32 from fw1120.00 before fw1120.02 |
| Ibm | Power System S1112 \(9242-21b\) Firmware | from fw1120.00 before fw1120.02 |
| Ibm | Power System S1112 \(9242-21t\) Firmware | from fw1120.00 before fw1120.02 |
| Ibm | Power System E1080 \(9080-Hex\) Firmware | from fw1060.00 before fw1060.82 |
| Ibm | Power System S1022 \(9105-22a\) Firmware | from fw1060.00 before fw1060.82 |
| Ibm | Power System S1024 \(9105-42a\) Firmware | from fw1060.00 before fw1060.82 |