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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-2026-17042

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 image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.

CVSS 3.1 · 7.3 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 18 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