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-2026-18681

This Power System Buffer Overflow

IBM Server 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 firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 more

CVE-2026-18848

Power System Cross-Site Request Forgery (CSRF)

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 conditions, silently perform administrative actions on the FSP on behalf of that administrator, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 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-2026-16828

Power System Out-of-bounds Read

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 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 interface will restart automatically; however, repeated exploitation could result in a sustained loss of access to the ASMI management interface, resulting in an integrity and availability impact.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 more

CVE-2026-16832

Power System Buffer Overflow

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 attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 more

CVE-2026-16835

Power System Improper Certificate Validation

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 administrative operation on the managed system, including control of partition power state, configuration, and console access across all hosted partitions, resulting in a confidentiality, integrity, and availability impact to the managed system.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 more

CVE-2026-16938

Power System Missing Authorization

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 access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention — clearing the affected configuration — to restore normal operation. Successful exploitation results in an availability impact to the managed system.

CVSS 3.1 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 more

CVE-2026-16687

Power System Buffer Overflow

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 unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Ibm

Products

Power System E1080 \(9080-hex\) Power System E1080 \(9080-hex\) Firmware Power System E1180 \(9080-heu\) and 16 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