CVE-2026-17414
Network-boot spoofing can stop or replace boot images on IBM PowerVM partitions.
Is CVE-2026-17414 being exploited?
Not confirmed. CVE-2026-17414 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.19% probability of exploitation in the next 30 days.
How severe is CVE-2026-17414?
CVE-2026-17414 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-17414?
Yes. A fix has been recorded for CVE-2026-17414. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17414 affect?
CVE-2026-17414 affects IBM PowerVM Hypervisor, Power Systems firmware FW1120.00, Power Systems firmware FW1110.00 - FW1110.30, Power Systems firmware FW1060.00 - FW1060.80, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17414?
Disable network boot or enable OS secure boot; segregate PXE networks and apply vendor firmware updates when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker on same network can halt network boot and, if OS secure boot is off (default), substitute boot image to fully compromise the partition.
Immediate action required
- affectedFW1120.00
- affected>= FW1110.00 and <= FW1110.30
- affected>= FW1060.00 and <= FW1060.80
- affected>= FW950.00 and <= FW950.H2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.