SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-16835

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.

CRITICAL 9.6EPSS 0.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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 CRITICALCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
0.22% probability · 12th percentile
CISA KEV
Not listed
Weakness
CWE-295
Affected
ibm/power system e1080 \(9080-hex\) firmware · ibm/power system e1180 \(9080-heu\) firmware · ibm/power system s922 \(9009-22g\) firmware · ibm/power system h922 \(9223-22s\) firmware · ibm/power system s914 \(9009-41g\) firmware · ibm/power system s924 \(9009-42g\) firmware · ibm/power system h924 \(9223-42s\) firmware · ibm/power system e950 \(9040-mr9\) firmware · ibm/power system e980 \(9080-m9s\) firmware
Source
psirt@us.ibm.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.