CVE-2026-4936: Insufficient Entropy

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...

PT-2026-78563

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 IBM Power Systems Firmware versions FW950.00 through FW950.H2...

PT-2026-78568

Name of the Vulnerable Software and Affected Versions Power Systems Firmware version FW1120.00 Power Systems Firmware versions FW1110.00 through FW1110.30 Power Systems Firmware versions FW1060.00 through FW1060.80 Power Systems Firmware versions FW950.00 through FW950.H2 Power Systems Firmware...

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-2026-78657

Name of the Vulnerable Software and Affected Versions IBM PowerVM Hypervisor version FW1120.00 IBM PowerVM Hypervisor versions FW1110.00 through FW1110.30 IBM PowerVM Hypervisor versions FW1060.00 through FW1060.80 IBM PowerVM Hypervisor versions FW950.00 through FW950.H2 Description A flaw exist...

PT-2026-78588

Name of the Vulnerable Software and Affected Versions IBM PowerVM Hypervisor version FW1120.00 IBM PowerVM Hypervisor versions FW1110.00 through FW1110.30 IBM PowerVM Hypervisor versions FW1060.00 through FW1060.80 IBM PowerVM Hypervisor versions FW950.00 through FW950.H2 Description A flaw exist...

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-2026-18871

Summary Power Systems Firmware 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, causing the host firmware boot stack to crash with possible memory...

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-2026-16707

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...

Security Bulletin: This Power System update is being released to address CVE-2026-4936

Summary PowerVM Platform KeyStore PKS and virtual TPM 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 exploit this weakness to derive the encryption key and access the data. Vulnerability Details...

SUSE CVE-2026-45994

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix OOB reads in commandfilewrite due to missing size checks The commandfilewrite handler allocates a kernel buffer of exactly count bytes and copies user data into it, but does not validate the buffer against the dot...

CVE-2026-45994

A flaw was found in the Linux kernel's ibmasm module. This vulnerability, an out-of-bounds read in the commandfilewrite function, allows an attacker to cause the system to read beyond the intended memory boundaries. By manipulating the allocation size and header fields, an attacker can trigger th...

CVE-2026-46022

A flaw was found in the Linux kernel's ibmasm module. A compromised service processor can exploit this by manipulating specific hardware registers, causing the system to read data from an unintended memory location. This out-of-bounds read can lead to a system crash, resulting in a Denial of...

CVE-2026-46064

A flaw was found in the Linux kernel's ibmasm module. A local root user can exploit a heap over-read vulnerability within the ibmasmsendi2omessage function. This vulnerability arises from insufficient validation of user-controlled input sizes, allowing the system to read beyond allocated memory...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

AZL-88587 CVE-2026-46022 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: misc: ibmasm: fix OOB MMIO read in ibmasmhandlemouseinterrupt ibmasmhandlemouseinterrupt performs an out-of-bounds MMIO read when the queue reader or writer index from hardware exceeds REMOTEQUEUESIZE 60. A compromised service...

UBUNTU-CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

CVE-2026-46064

In the Linux kernel, the following vulnerability has been resolved: ibmasm: fix heap over-read in ibmasmsendi2omessage The ibmasmsendi2omessage function uses getdotcommandsize to compute the byte count for memcpytoio, but this value is derived from user-controlled fields in the dotcommandheader...

PT-2026-43861

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description An issue exists in the command file write handler where it allocates a kernel buffer based on a user-provided count but fails to validate this buffer against the dot command protocol before...