high7.3
CVE-2026-18871
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration pa…
Impact
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causing the host firmware boot stack to crash with possible memory corruption during system initialisation, resulting in an integrity and availability impact to the managed system.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ibm | Power System S1122 \(9824-22a\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System S1124 \(9824-42a\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System S1122s \(9824-22b\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System S1114 \(9824-41b\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System L1122 \(9856-22h\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System L1124 \(9856-42h\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System E1150 \(9043-Mru\) Firmware | from fw1110.00 before fw1110.31 Version fw1120.00 |
| Ibm | Power System S1112 \(9242-21b\) Firmware | Version fw1120.00 |
| Ibm | Power System S1112 \(9242-21t\) Firmware | Version fw1120.00 |
| Ibm | Power System E1080 \(9080-Hex\) Firmware | from fw1060.00 before fw1060.81 |
| Ibm | Power System S1022 \(9105-22a\) Firmware | from fw1060.00 before fw1060.81 |
| Ibm | Power System S1024 \(9105-42a\) Firmware | from fw1060.00 before fw1060.81 |