Security Bulletin: This Power System update is being released to address CVE-2026-19234

Summary Power Systems Firmware 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, allowing arbitrary code to be executed on the host system. Successful...

Security Bulletin: This Power System update is being released to address CVE-2026-17429

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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted...

Security Bulletin: This Power System update is being released to address CVE-2026-16930

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 execute arbitrary code on the host system, giving full control over the host system and all hosted partitions,...

Security Bulletin: This Power System update is being released to address CVE-2026-19321

Summary Power Systems Firmware 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 that should be inaccessible to the service processor. Successful...

CVE-2026-17414

IBM PowerVM Hypervisor firmware (FW1120.00, FW1110.00–.30, FW1060.00–.80, FW950.00–.H2) has a CWE-20 improper input validation flaw in partition firmware during network boot. An unauthenticated adjacent attacker can block boot or substitute the boot image on partitions without OS secure boot (the...

CVE-2026-19321

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-2026-18848

IBM Power Systems Firmware 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 ASMI web interface. An attacker who can lure a logged-in ASMI administrator to visit a crafted web page can, under specific condition...

CVE-2026-17100

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-2026-17429

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-2026-16835

IBM Power Systems Firmware 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 FSP management network protocol. An unauthenticated attacker on the management network can bypass authentication and perform any...

CVE-2026-16687

IBM Power Systems firmware (FW1120.00, FW1110.00–30, FW1060.00–80, FW950.00–H2) has a CWE-121 stack-based buffer overflow in the ASMI web interface; an unauthenticated adjacent attacker can send a malformed FSP request to execute arbitrary code, gaining full system control. IBM recommends upgradi...

PT-2026-78559

Name of the Vulnerable Software and Affected Versions IBM Power Firmware version FW1120.00 IBM Power Firmware versions FW1110.00 through FW1110.30 IBM Power Firmware versions FW1060.00 through FW1060.80 Description A flaw exists in the host firmware boot process image validation path. An attacker...

PT-2026-78584

Name of the Vulnerable Software and Affected Versions IBM Power Systems Firmware version FW1120.00 IBM Power Systems Firmware versions FW1110.00 through FW1110.30 IBM Power Systems Firmware versions FW1060.00 through FW1060.80 Description A missing authorization issue exists in the interface...

PT-2026-78574

Name of the Vulnerable Software and Affected Versions IBM Power Firmware version FW1120.00 IBM Power Firmware versions FW1110.00 through FW1110.30 IBM Power Firmware versions FW1060.00 through FW1060.80 Description A flaw in the host firmware allows an attacker with service access to the service...

Security Bulletin: This Power System update is being released to address CVE-2026-16724

Summary Power Systems Firmware is affected by a vulnerability in the Virtualization Management Interface VMI. An attacker with authenticated administrator-level access can cause the VMI to crash. The VMI will restart automatically; however, repeated exploitation could result in a sustained...

Security Bulletin: This Power System update is being released to address CVE-2026-17042

Summary Power Systems Firmware is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This...

Security Bulletin: This Power System update is being released to address CVE-2026-17093

Summary Power Systems Firmware is affected by a vulnerability in host firmware configuration parsing. An attacker with service-level access to the BMC/FSP can supply specially crafted configuration data, compromising the host firmware boot stage and everything subsequently loaded by it, resulting...

Security Bulletin: This Power System update is being released to address CVE-2026-17100

Summary Power Systems Firmware is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control ove...

Security Bulletin: This Power System update is being released to address CVE-2026-16828

Summary Power Systems Firmware is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker on the management network can cause the ASMI web server to crash with possible memory corruption and generate an error log; hosted partitions are not affected. The ASMI web interfa...

Security Bulletin: This Power System update is being released to address CVE-2026-18848

Summary Power Systems Firmware is affected by a vulnerability in the ASMI web interface. An attacker who can lure a logged-in ASMI administrator to visit a crafted web page can, under specific conditions, silently perform administrative actions on the FSP on behalf of that administrator, resultin...