CVE-2026-16835CWE-295

CVE-2026-16835

Critical · published August 19, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
28.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00360 · 28.6th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-08-19T23:17Z
Affected products (10)
ProductVersionsFixed in
ibm/power_system_e1080_\(9080-hex\)_firmware≥ fw1060.00, < fw1060.81fw1060.81
ibm/power_system_e1180_\(9080-heu\)_firmware≥ fw1110.00, < fw1110.31fw1110.31
ibm/power_system_e1180_\(9080-heu\)_firmwareall versions—
ibm/power_system_s922_\(9009-22g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_h922_\(9223-22s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_s914_\(9009-41g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_s924_\(9009-42g\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_h924_\(9223-42s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_e950_\(9040-mr9\)_firmware≥ fw950.00, < fw950.h3fw950.h3
ibm/power_system_e980_\(9080-m9s\)_firmware≥ fw950.00, < fw950.h3fw950.h3
References (1)
EPSS history
Timeline
  • 19 AUG 18:52Z
    Power System Improper Certificate Validation
    cvelistv5