# CVE-2026-17083: IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to execute arbitrary code due to a stack-based buffer overflow.

Source: https://junglewise.ai/threats/cve-2026-17083-ibm-i-7-6-7-5-7-4-and-7-3-could-allow-a-remote-attacker-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-12  
License: CC BY 4.0 with a link back

CVE-2026-17083 · Severity: critical · CVSS 9.8 · Published 2026-08-12

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to execute arbitrary code due to a stack-based buffer overflow.

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

## Quick answers

**Is CVE-2026-17083 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17083 being exploited in the wild.

**How severe is CVE-2026-17083?** Critical severity, with a CVSS score of 9.8, published 12 August 2026.

**Which products and versions are affected?** IBM I. The advisory does not name versions.

**Is there a fix for CVE-2026-17083?** 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.

**Am I affected by CVE-2026-17083?** Check whether you run IBM I. 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.

## Affected products

- IBM I

## Related threats

- [IBM i Navigator authentication bypass via improper access control](https://junglewise.ai/threats/cve-2026-93744-ibm-i-7-3-7-4-7-5-and-7-6-could-allow-an-unathenticated-remote)
- [IBM i ChrootDirectory security restriction bypass in OpenSSH](https://junglewise.ai/threats/cve-2026-17491-ibm-i-7-3-7-4-7-5-and-7-6-is-could-allow-a-remote-authenticated)
- [IBM i improper authentication bypass in SST/DST](https://junglewise.ai/threats/cve-2026-17488-ibm-i-7-3-7-4-7-5-and-7-6-could-allow-a-remote-authenticated)
- [IBM i file handle access control vulnerability in NFS](https://junglewise.ai/threats/cve-2026-17073-ibm-i-7-3-7-4-7-5-and-7-6-could-allow-a-local-attacker-to-obtain)
- [IBM i NFS version restriction bypass](https://junglewise.ai/threats/cve-2026-17068-ibm-i-7-3-7-4-7-5-and-7-6-could-allow-a-local-attacker-to-bypass)