Auth bypass in IBM Power System E1050 \(9043-Mrx\) 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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (4.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- IBM Power System E1050 \(9043-Mrx\) Firmware
- IBM Power System E1080 \(9080-Hex\) Firmware
- IBM Power System E1150 \(9043-Mru\) Firmware — versions fw1120.00
- IBM Power System E1180 \(9080-Heu\) Firmware — versions fw1120.00
- IBM Power System L1022 \(9786-22h\) Firmware
- IBM Power System L1024 \(9786-42h\) Firmware
- IBM Power System L1122 \(9856-22h\) Firmware — versions fw1120.00
- IBM Power System L1124 \(9856-42h\) Firmware — versions fw1120.00
- IBM Power System S1012 \(9028-21b\) Firmware
- IBM Power System S1014 \(9105-41b\) Firmware
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/7283219 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-17063?
- CVE-2026-17063 is a high-severity vulnerability in IBM Power System E1050 \(9043-Mrx\) 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.