CVE-2026-17494
BMC-to-host firmware flaw allows code execution on IBM Power host and partitions.
Is CVE-2026-17494 being exploited?
Not confirmed. CVE-2026-17494 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 0.11% probability of exploitation in the next 30 days.
How severe is CVE-2026-17494?
CVE-2026-17494 is rated High with a CVSS score of 8.2. 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-2026-17494?
Yes. A fix has been recorded for CVE-2026-17494. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17494 affect?
CVE-2026-17494 affects IBM Power Systems Firmware FW1120.00, IBM Power Systems Firmware FW1110.00 - FW1110.30, Baseboard Management Controller (BMC) interface to host. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17494?
Isolate/restrict BMC network access, enforce strong auth, and apply vendor firmware updates when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Service-access to BMC enables remote arbitrary code execution on host, full control of host and all hosted partitions.
Immediate action required
- affectedFW1120.00
- affected>= FW1110.00 and <= FW1110.30
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.