CVE-2026-96265: Improper Restriction of Operations within the Bounds of a Memory Buffer

IBM Power Systems Firmware FW1060.00 through FW1060.81 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,...

CVE-2026-96263: Stack-based Buffer Overflow

IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 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 co...

PT-2026-110959

Name of the Vulnerable Software and Affected Versions IBM Power Systems Firmware versions FW1060.00 through FW1060.81 Description A flaw exists in the service processor mailbox interface. An authenticated attacker with service-level access to the Flexible Service Processor FSP can send a speciall...

PT-2026-110956

Name of the Vulnerable Software and Affected Versions IBM Power Systems Firmware versions FW1060.00 through FW1060.81 Description A flaw exists in the service processor mailbox interface. An attacker with authenticated service-level access to the Flexible Service Processor FSP can send a speciall...

CVE-2026-96262: Stack-based Buffer Overflow

IBM Power Systems Firmware FW1060.00 through FW1060.81 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 overflow host firmware runtime attribute storage, allowi...

PT-2026-110957

Name of the Vulnerable Software and Affected Versions IBM Power Systems Firmware versions FW1120.00 through FW1120.01 IBM Power Systems Firmware versions FW1110.00 through FW1110.31 IBM Power Systems Firmware versions FW1060.00 through FW1060.81 Description A buffer overflow exists in the host...

Security Bulletin: This Power System update is being released to address CVE-2026-96263

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-2026-96264

Summary Power Systems Firmware 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 overflow host firmware runtime attribute storage, allowing arbitrary code to be...

Security Bulletin: This Power System update is being released to address CVE-2026-96262

Summary Power Systems Firmware 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 overflow host firmware runtime attribute storage, allowing arbitrary code to be...

Security Bulletin: This Power System update is being released to address CVE-2026-96265

Summary Power Systems Firmware 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...

EUVD-2026-85891

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition resource dump interface. An attacker with authenticated administrator-level access to the HMC or service...

CVE-2026-17511

The IBM PowerVM Hypervisor is affected by a vulnerability in the partition resource dump interface (CWE-212), which allows an attacker with authenticated administrator-level access to the HMC or service processor to obtain a limited snapshot of partition processor state. This results in a confide...

PT-2026-97810

Name of the Vulnerable Software and Affected Versions IBM PowerVM Hypervisor versions 1120.00 through 1120.01 IBM PowerVM Hypervisor versions 1110.00 through 1110.31 IBM PowerVM Hypervisor versions 1060.00 through 1060.81 IBM PowerVM Hypervisor versions 950.00 through 950.H3 Description A flaw...

CVE-2026-17511: Improper Removal of Sensitive Information Before Storage or Transfer

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition resource dump interface. An attacker with authenticated administrator-level access to the HMC or service...

Security Bulletin: This Power System update is being released to address CVE-2026-17511

Summary Power Systems Firmware is affected by a vulnerability in the partition resource dump interface. An attacker with authenticated administrator-level access to the HMC or service processor can obtain a limited snapshot of partition processor state. Successful exploitation results in a...

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-2026-19321

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-2026-4936

IBM PowerVM Hypervisor Platform KeyStore PKS and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could...

CVE-2026-18871

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causin...

CVE-2026-16707

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...