CVE-2026-17042
7.3 · HIGHOverview
CVE-2026-17042 is a high-severity vulnerability affecting ibm power_system_s922_\(9009-22g\)_firmware. It was published on August 19, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from ibm. Update power_system_s922_\(9009-22g\)_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ibm | power_system_s922_\(9009-22g\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_h922_\(9223-22s\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_s914_\(9009-41g\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_s924_\(9009-42g\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_h924_\(9223-42s\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_e950_\(9040-mr9\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_e980_\(9080-m9s\)_firmware | >= fw950.00, < fw950.h3 | Affected |
| ibm | power_system_ac922_\(8335-gth\)_firmware | >= op940, < op940.a2 | Affected |
| ibm | power_system_ac922_\(8335-gtx\)_firmware | >= op940, < op940.a2 | Affected |
| ibm | power_hardware_management_console_\(7063-cr2\)_firmware | >= op940, < op940.82 | Affected |
References
Frequently Asked Questions
What is CVE-2026-17042?
CVE-2026-17042 is a high-severity vulnerability affecting ibm power_system_s922_\(9009-22g\)_firmware. It was published on August 19, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).
How severe is CVE-2026-17042?
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-17042?
Check the references section for vendor advisories and patches from ibm. Update power_system_s922_\(9009-22g\)_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-17042?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-17042 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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