CVE-2026-16933

Summary

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

Affected Software

VendorProductVersion RangeStatus
IBMPower Systems FirmwareFW1120.00affected
IBMPower Systems FirmwareFW1110.00 <= FW1110.30affected
IBMPower Systems FirmwareFW1060.00 <= FW1060.80affected
IBMPower Systems FirmwareFW950.00 <= FW950.H2affected
IBMPower Systems FirmwareOP940.00 <= OP940.a1affected
IBMPower Systems FirmwareOP940.00 <= OP940.81affected

Weaknesses

  • CWE-190: CWE-190 Integer Overflow or Wraparound

References