CVE-2026-19492

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing...

EUVD-2026-86007

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing...

CVE-2026-19492

The IBM PowerVM Hypervisor is affected by a vulnerability in a hypervisor call interface, classified as CWE-457: Use of Uninitialized Variable . An attacker with root access to a guest partition can read a limited amount of hypervisor memory, which may expose sensitive data belonging to the hyper...

CVE-2026-19492 This Power System update is being released to address

IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing...

CVE-2026-17091

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 PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to...

CVE-2026-17097

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 PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call causin...

CVE-2026-17091

IBM PowerVM Hypervisor is affected by an integer overflow (CWE-190) in the hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to inject arbitrary data into hypervisor or partition memory, causing either a full platform re-IPL...

EUVD-2026-62870

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 PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call causin...

CVE-2026-17097

IBM PowerVM Hypervisor is affected by an improper validation of array index (CWE-129) in the hypervisor call interface . An attacker with root access to a guest partition can issue a specially crafted hypervisor call that causes a virtual processor to become permanently unresponsive , requiring a...

CVE-2026-17042

CVE-2026-17042 is an out-of-bounds read (CWE-125) in IBM Power Systems host firmware NVRAM parsing . An attacker with root access to a guest partition on an OpenPOWER system can write a crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. The conditi...

CVE-2026-17042 Power System Out-of-bounds Read

IBM Power Systems Firmware 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 NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM...

CVE-2026-17042 Power System Out-of-bounds Read

IBM Power Systems Firmware 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 NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM...

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-2026-17091

Summary Power Systems Firmware is affected by a vulnerability in the PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to inject an arbitrary amount of data into hypervisor or partition memory, resulting in either a...