Security Bulletin: This Power System update is being released to address CVE-2026-17494

Summary Power Systems Firmware is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system...

Security Bulletin: This Power System update is being released to address CVE-2026-16933

Summary Power Systems Firmware 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 hoste...

Security Bulletin: This Power System update is being released to address CVE-2026-17063

Summary Power Systems Firmware 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 access and disrupt host processor state, potentially affecting the managed system and all hosted partitions,...

CVE-2026-17494

CVE-2026-17494 is a stack-based buffer overflow (CWE-121) in the interface between the BMC and host system of IBM Power Systems Firmware. Affected versions are FW1120.00 and FW1110.00 through FW1110.30 . An attacker with service access to the BMC can send a specially crafted command to achieve ar...

CVE-2026-17494 Power System Buffer Overflow

IBM Power Systems Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system,...

CVE-2026-17429 Power System Incorrect Authorization

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 - OP940.81 Power HMC is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with...

CVE-2026-17429

IBM Power Systems firmware (FW1120.00, FW1110.00-FW1110.30, FW1060.00-FW1060.80, FW950.00-FW950.H2, OP940.00-OP940.a1) has a CWE-863 incorrect authorization flaw in the BMC/FSP-host interface. A privileged BMC/FSP attacker can write arbitrary hardware control registers, gaining full host and part...

CVE-2026-16930

Power Systems Firmware versions FW1120.00, FW1110.00–.30, and FW1060.00–.80 are affected by CWE-862 (Missing Authorization), allowing a privileged BMC/FSP user to execute arbitrary code on the host and all partitions. Upgrade to FW1110.31, FW1120.01, or FW1060.81 (or newer) per the IBM Security B...

CVE-2026-16930 Power System Missing Authorization

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 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 execute arbitrary code on the host system,...

CVE-2026-17093 Power System Buffer Overflow

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 - OP940.81 Power HMC is affected by a vulnerability in host firmware configuration parsing. An attacker with service-level acce...

CVE-2026-17093

IBM Power Systems firmware (FW950, FW1060, FW1110, FW1120, OP940) is vulnerable to CWE-121 stack-based buffer overflow in host firmware configuration parsing. An attacker with BMC/FSP service-level access can compromise the host firmware boot stage and everything subsequently loaded, with CVSS 8....

EUVD-2026-62633

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 - OP940.81 Power HMC is affected by a vulnerability in host firmware configuration parsing. An attacker with service-level acce...

CVE-2026-17100 Power System Out-of-bounds Write

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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access ...

CVE-2026-17100

IBM Power Systems Firmware is affected by an out-of-bounds write (CWE-787) in the service processor mailbox interface . An attacker with authenticated service-level access to the BMC/FSP can exploit this to execute arbitrary code in the host firmware runtime , gaining full control over the manage...

EUVD-2026-62629

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, and OP940.00 - OP940.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access ...

CVE-2026-19321

IBM Power Firmware is vulnerable due to CWE-190: Integer Overflow or Wraparound in host firmware. An attacker with service-processor access can craft commands to leak inaccessible hardware registers, causing limited confidentiality and high availability impact (CVSS 6.7). Affected versions includ...

CVE-2026-19321 Power System Integer Overflow

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware. An attacker with service access to the service processor can supply a carefully crafted command that could leak the contents of hardware registers th...

EUVD-2026-62682

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware. An attacker with service access to the service processor can supply a carefully crafted command that could leak the contents of hardware registers th...

CVE-2026-19234

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image,...

CVE-2026-19234 Power System Buffer Overflow

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image,...