# CVE-2026-17186: IBM Db2 Mirror for i OS command injection

Source: https://junglewise.ai/threats/cve-2026-17186-ibm-db2-mirror-for-i-os-command-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-14. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-17186 · Severity: critical · CVSS 9.9 · Published 2026-08-14

IBM Db2 Mirror for i is a database management tool used to manage IBM i system data. CVE-2026-17186 allows remote attackers without authentication to execute arbitrary CL (Control Language) system commands on the affected server due to improper input validation, potentially leading to complete system compromise, data theft, or service disruption.

Technologies: [IBM Db2 Mirror For I](https://junglewise.ai/threats/technologies/db2-mirror-for-i). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-17186 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17186 being exploited in the wild.

**How severe is CVE-2026-17186?** Critical severity, with a CVSS score of 9.9, published 14 August 2026.

**Which products and versions are affected?** IBM Db2 Mirror For I 7.4, 7.5, 7.6.

**Is there a fix for CVE-2026-17186?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-17186 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-17186?** Check whether you run IBM Db2 Mirror For I at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is an OS command injection (CWE-78) affecting the GUI component of IBM Db2 Mirror for i. The flaw stems from improper neutralization of special elements in commands, allowing unauthenticated remote attackers to inject and execute arbitrary CL commands over the network without requiring valid credentials. The attack requires no user interaction and has low attack complexity, affecting confidentiality, integrity, and availability. A patch is available from IBM; affected versions include 7.4, 7.5, and 7.6.

## Affected products

- IBM Db2 Mirror for i 7.4, 7.5, 7.6

## Timeline

- 2026-08-14: disclosed

## References

- [https://www.ibm.com/support/pages/node/7283359](https://www.ibm.com/support/pages/node/7283359)

## Related threats

- [IBM Db2 Mirror for i privilege escalation in GUI](https://junglewise.ai/threats/cve-2026-96012-ibm-db2-mirror-for-i-7-4-7-5-and-7-6-is-vulnerable-to-privilege)
- [IBM Db2 Mirror for i CSRF in GUI](https://junglewise.ai/threats/cve-2026-17047-ibm-db2-mirror-for-i-csrf-in-gui)
- [IBM Db2 Mirror for i improper authorization in SQL procedure](https://junglewise.ai/threats/cve-2026-17483-ibm-db2-mirror-for-i-improper-authorization-in-sql-procedure)
- [IBM Db2 Mirror for i out-of-bounds read denial of service](https://junglewise.ai/threats/cve-2026-16660-ibm-db2-mirror-for-i-out-of-bounds-read-denial-of-service)
- [IBM Db2 Mirror for i race condition in Unix domain socket path](https://junglewise.ai/threats/cve-2026-18567-ibm-db2-mirror-for-i-race-condition-in-unix-domain-socket-path)