Affects IBM i enterprise OS used broadly; remote authenticated privilege escalation can lead to full system compromise and requires org-wide notification.
CVE-2026-17276
Remote authenticated privilege escalation in IBM i 7.3–7.6 allowing administrative access.
Is CVE-2026-17276 being exploited?
Not confirmed. CVE-2026-17276 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 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2026-17276?
CVE-2026-17276 is rated Critical with a CVSS score of 9.6. 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-2026-17276?
Yes. A fix has been recorded for CVE-2026-17276. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17276 affect?
CVE-2026-17276 affects IBM i 7.3, IBM i 7.4, IBM i 7.5, IBM i 7.6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17276?
Apply vendor patch ASAP; restrict admin access and audit privileged accounts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote attacker can escalate to admin/root-equivalent, execute high-privilege commands, access data, and fully compromise the system.
Immediate action required
- affected7.6
- affected7.5
- affected7.4
- affected7.3
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.