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Vulnerability record · CVE-2026-17429 · published 19 August 2026

CVE-2026-17429: Ibm power system s1122 \(9824-22a\) firmware incorrect authorization vulnerability

Ibm · Power System S1122 \(9824 22a\) Firmware

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

8.1 CVSS 3.1 High EPSS 0.15% · top 96.4% CWE-863 · Incorrect authorization
8.1CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
29Affected product versions listed by NVD
1References
25 Aug 2026Last modified by NVD

Description

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) 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 write arbitrary data to hardware control registers, allowing full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H

Affected products

29 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ibm.com/support/pages/node/7283218 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-17429), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.