CVE-2026-16707
8.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
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 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| IBM | PowerVM Hypervisor | FW1120.00 | affected |
| IBM | PowerVM Hypervisor | FW1110.00 <= FW1110.30 | affected |
| IBM | PowerVM Hypervisor | FW1060.00 <= FW1060.80 | affected |
| IBM | PowerVM Hypervisor | FW950.00 <= FW950.H2 | affected |
Weaknesses
- CWE-125: CWE-125 Out-of-bounds Read
References
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