# CVE-2026-71451: Johnson Controls EasyIO FS32 OS command injection

Source: https://junglewise.ai/threats/cve-2026-71451-os-command-injection-vulnerability-in-johnson-controls-easyio  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-01. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-71451 · Severity: info · Published 2026-10-01

Johnson Controls EasyIO FS32 is an industrial control module used in building automation and HVAC systems. An OS command injection vulnerability could allow an attacker to execute arbitrary commands on the device, potentially compromising critical infrastructure, enabling data theft, or causing operational outages.

Technologies: [Johnson Controls EasyIO FS32](https://junglewise.ai/threats/technologies/easyio-fs32). Vendors: [Johnson Controls](https://junglewise.ai/threats/vendors/johnson-controls).

## Quick answers

**Is CVE-2026-71451 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-71451 being exploited in the wild.

**How severe is CVE-2026-71451?** Informational severity, published 1 October 2026.

**Which products and versions are affected?** Johnson Controls EasyIO FS32 before 3.0b63.

**Is there a fix for CVE-2026-71451?** Yes: fixed in 3.0b63. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-71451?** Check whether you run Johnson Controls EasyIO FS32 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.

## How to fix

- Fixed in 3.0b63

## Technical details

An OS command injection vulnerability exists in EasyIO FS32 versions before 3.0b63, allowing an attacker to inject and execute arbitrary operating system commands. The vulnerability likely stems from insufficient input validation in command processing. The attack vector and preconditions are not detailed in the advisory, but successful exploitation could grant an attacker code execution on the device.

## Affected products

- Johnson Controls EasyIO FS32 before 3.0b63

## References

- [https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories](https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories)

## Related threats

- [Johnson Controls EasyIO FS32 path traversal](https://junglewise.ai/threats/cve-2026-71453-external-control-of-file-name-or-path-vulnerability-in-johnson)
- [Johnson Controls EasyIO FS32 OS command injection](https://junglewise.ai/threats/cve-2026-71452-os-command-injection-vulnerability-in-johnson-controls-easyio)
- [Johnson Controls EasyIO FS32 hardcoded cryptographic key](https://junglewise.ai/threats/cve-2026-71449-use-of-hard-coded-cryptographic-key-vulnerability-in-johnson)
- [Johnson Controls EasyIO FS32 insecure default initialization authentication abuse](https://junglewise.ai/threats/cve-2026-71448-insecure-default-initialization-of-resource-vulnerability-in)
- [Johnson Controls EasyIO FS32 debug interface information exposure](https://junglewise.ai/threats/cve-2026-34493-on-chip-debug-interface-vulnerability-in-johnson-controls-easyio)