Quick answers
- Is CVE-2026-14276 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-14276 being exploited in the wild.
- How severe is CVE-2026-14276?
- Medium severity, with a CVSS score of 6.3, published 14 September 2026.
- Which products and versions are affected?
- IBM i Access Client Solutions 1.1.2.0 through 1.1.9.15.
- Is there a fix for CVE-2026-14276?
- 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-2026-14276 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-14276?
- Check whether you run IBM i Access Client Solutions 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 exists in the emulator macro RunProgram action handler, which fails to properly validate user-supplied input. An authenticated user can craft a malicious macro file that exploits this improper input validation to execute arbitrary operating system commands with the privileges of the user running the emulator. The attack requires the attacker to have authenticated access to the system and the ability to load a malicious macro file. The vulnerability allows code execution on the local or remote IBM i system being accessed.
Affected products
- IBM i Access Client Solutions 1.1.2.0 through 1.1.9.15
Timeline
- 2026-09-14: disclosed