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CVE-2026-16707

Power System Out-of-bounds Read PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
IBM / PowerVM Hypervisoraffected FW1120.00; affected FW1110.00 through FW1110.30; affected FW1060.00 through FW1060.80; affected FW950.00 through FW950.H2

CWE

CWE-125

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.