Is CVE-2026-96265 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-96265?

CVE-2026-96265 has a CVSS v3 severity of HIGH (8.2).

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CVE-2026-96265

Description

IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to read or modify arbitrary regions of Hostboot memory, 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.