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CVE-2026-15961

Power System Information Disclosure

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 IBM PowerVM could allow a local attacker to obtain sensitive information or cause a denial of service due to improper control of format strings.

CVSS 3.1 · 5.2 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 37 more
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 access to the BMC/FSP can supply specially crafted configuration data, compromising the host firmware boot stage and everything subsequently loaded by it, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power Hardware Management Console \(7063-cr2\) Power Hardware Management Console \(7063-cr2\) Firmware Power System Ac922 \(8335-gth\) and 56 more
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 to the BMC/FSP can exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power Firmware Power Hardware Management Console \(7063-cr2\) Power Hardware Management Console \(7063-cr2\) Firmware and 57 more
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 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 partitions, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power Hardware Management Console \(7063-cr2\) Power Hardware Management Console \(7063-cr2\) Firmware Power System Ac922 \(8335-gth\) and 56 more
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, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1150 \(9043-mru\) Power System E1150 \(9043-mru\) Firmware Power System E1180 \(9080-heu\) and 18 more
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 that should be inaccessible to the service processor. Successful exploitation could result in limited confidentiality or availability impacts to the affected host system.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 36 more
CVE-2026-16661

Power System Integer Overflow

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 exploit this vulnerability, allowing arbitrary code to be executed in the host firmware runtime, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 51 more
CVE-2026-16707

Power System Out-of-bounds Read

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 message to read or modify arbitrary regions of Hostboot memory, compromising the host firmware boot stack and the hypervisor subsequently loaded by it. Successful exploitation results in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 51 more
CVE-2026-16724

Power System Integer Overflow

IBM Virtualization Management Interface FW1110.00 through FW1110.30, FW1120.00 through FW1120.00, and FW1060.00 through FW1060.80 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 availability impact.

CVSS 3.1 · 4.5 Medium EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1150 \(9043-mru\) and 33 more
CVE-2026-16933

Power System Integer 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 through OP940.81 (Power HMC) 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 hosted partitions, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power Hardware Management Console \(7063-cr2\) Power Hardware Management Console \(7063-cr2\) Firmware Power System Ac922 \(8335-gth\) and 56 more
CVE-2026-17063

Power System Incorrect 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 access and disrupt host processor state, potentially affecting the managed system and all hosted partitions, resulting in an confidentiality, and availability impact.

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 36 more
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, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Power System E1050 \(9043-mrx\) Power System E1050 \(9043-mrx\) Firmware Power System E1080 \(9080-hex\) and 36 more