CVE-2026-17186
Remote command injection in IBM Db2 Mirror for i allows arbitrary CL execution
Is CVE-2026-17186 being exploited?
Not confirmed. CVE-2026-17186 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-17186?
CVE-2026-17186 is rated Critical with a CVSS score of 9.9. 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-2026-17186?
Yes. A fix has been recorded for CVE-2026-17186. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-17186 affect?
CVE-2026-17186 affects IBM Db2 Mirror for i 7.4, IBM Db2 Mirror for i 7.5, IBM Db2 Mirror for i 7.6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-17186?
Isolate affected hosts, restrict access to Db2 Mirror, and apply vendor patch/mitigations when published
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can inject and execute arbitrary CL commands on IBM i hosts, enabling full system control, data access, and service disruption.
Immediate action required
- affected7.4
- affected7.5
- affected7.6
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.