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Vulnerabilities CVE-2026-16835

CVE-2026-16835

Critical
Open
TLP:CLEAR

Power System Improper Certificate Validation

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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.

Details

CVSS Score
9.6
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Confidence
90%
Published
Aug 19, 2026
Last Modified
Aug 19, 2026
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