Security Advisory

CVE-2026-16661

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-19 19:31:30
Last updated 2026-08-22 03:55:52
Assigner ibm
CVSS score 8.2
State PUBLISHED

Description

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.