CVE-2026-17042 Details
Description
IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 19, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7283240 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ibm power system s922 (9009-22g) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system s922 (9009-22g) | All versions |
CPE
Remediation
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| ibm power system h922 (9223-22s) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system h922 (9223-22s) | All versions |
CPE
Remediation
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| ibm power system s914 (9009-41g) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system s914 (9009-41g) | All versions |
CPE
Remediation
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| ibm power system s924 (9009-42g) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system s924 (9009-42g) | All versions |
CPE
Remediation
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| ibm power system h924 (9223-42s) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system h924 (9223-42s) | All versions |
CPE
Remediation
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| ibm power system e950 (9040-mr9) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system e950 (9040-mr9) | All versions |
CPE
Remediation
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| ibm power system e980 (9080-m9s) firmware | >= fw950.00, < fw950.h3 |
CPE
Remediation
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| ibm power system e980 (9080-m9s) | All versions |
CPE
Remediation
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| ibm power system ac922 (8335-gth) firmware | >= op940, < op940.a2 |
CPE
Remediation
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| ibm power system ac922 (8335-gth) | All versions |
CPE
Remediation
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| ibm power system ac922 (8335-gtx) firmware | >= op940, < op940.a2 |
CPE
Remediation
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| ibm power system ac922 (8335-gtx) | All versions |
CPE
Remediation
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| ibm power hardware management console (7063-cr2) firmware | >= op940, < op940.82 |
CPE
Remediation
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| ibm power hardware management console (7063-cr2) | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 25, 2026 | Initial Analysis | [email protected] |
| Aug 19, 2026 | New CVE Received | [email protected] |
| Aug 19, 2026 | CVE Modified | CISA-ADP |