Auth bypass in IBM Power Systems Firmware
CVE-2026-17063
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.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H.
Affected products
- Ibm Power Systems Firmware — versions FW1120.00
Weakness classification (CWE)
References
- psirt@us.ibm.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-17063?
- CVE-2026-17063 is a high-severity vulnerability in IBM Power Systems Firmware, classified under Incorrect Authorization. CVSS score: 7.9/10. Published 2026-08-19.
- How severe is CVE-2026-17063?
- High severity. CVSS v3 base score is 7.9 out of 10.