CVE-2026-96266
IBM Power Systems Firmware Buffer Overflow
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the FSP can write specially crafted configuration data to cause memory corruption in the host firmware boot stage during system IPL, compromising the host firmware boot stack and the hypervisor subsequently loaded by it. Successful exploitation results in a confidentiality, integrity, and availability impact to the managed system.
| CWE | CWE-121 |
| Vendor | ibm |
| Product | powervm hypervisor |
| Published | Oct 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
IBM / PowerVM Hypervisor
FW1060.00 ≤ FW1060.81