Advisoriesby IbisIBMCVE-2026-18871
IBM PowerVM Hypervisor: memory corruption
No fix yet
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| PowerVM Hypervisor Product | <= FW1120.00 | No fix yet |
| >= FW1110.00, <= FW1110.30 | No fix yet | |
| >= FW1060.00, <= FW1060.80 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-121