# CVE-2026-17499: IBM i OS command injection in Debug Server

Source: https://junglewise.ai/threats/cve-2026-17499-ibm-i-os-command-injection-in-debug-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-04. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-17499 · Severity: medium · CVSS 4.4 · Published 2026-09-04

IBM i is a mission-critical operating system used to run enterprise business applications. A local attacker with basic privileges can exploit improper input validation in the Debug Server to execute arbitrary commands, potentially gaining control over system operations and accessing sensitive data.

Technologies: [IBM i](https://junglewise.ai/threats/technologies/i). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-17499 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17499 being exploited in the wild.

**How severe is CVE-2026-17499?** Medium severity, with a CVSS score of 4.4, published 4 September 2026.

**Which products and versions are affected?** IBM i 7.3, 7.4, 7.5, 7.6.

**Is there a fix for CVE-2026-17499?** A patch was published on 2026-08-31: PTF releases: SJ11305 (7.6), SJ11306 (7.5), SJ11307 (7.4), SJ11308 (7.3) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-17499 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-17499?** Check whether you run IBM 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

The vulnerability is an OS command injection (CWE-78) in IBM i's Debug Server, affecting versions 7.6, 7.5, 7.4, and 7.3. The flaw stems from improper neutralization of special elements in OS commands, allowing a local attacker with low privileges to inject and execute arbitrary commands. The attack vector is local, requires low privileges (PR:L), and no user interaction is needed. An attacker can achieve limited integrity and availability impact. IBM has released PTF patches (SJ11305 for 7.6, SJ11306 for 7.5, SJ11307 for 7.4, SJ11308 for 7.3) to remediate the issue.

## Affected products

- IBM IBM i 7.3, 7.4, 7.5, 7.6

## Timeline

- 2026-09-04: disclosed
- 2026-08-31: patched: PTF releases: SJ11305 (7.6), SJ11306 (7.5), SJ11307 (7.4), SJ11308 (7.3)

## References

- [https://www.ibm.com/support/pages/node/7285844](https://www.ibm.com/support/pages/node/7285844)

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