# CVE-2026-6332: Schneider Electric EcoStruxure Machine Expert HVAC cleartext storage

Source: https://junglewise.ai/threats/cve-2026-6332-schneider-electric-ecostruxure-machine-expert-hvac-cleartext  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-14. Updated: 2026-05-28  
License: CC BY 4.0 with a link back

CVE-2026-6332 · Severity: high · CVSS 7.5 · Published 2026-05-14

Schneider Electric EcoStruxure Machine Expert HVAC is a programming tool used to configure industrial logic controllers for heating, ventilation, and air conditioning systems. A vulnerability in this software allows sensitive information, including protected source code, to be stored in plain text. If an unauthorized user gains local access to the system, they could view this sensitive data, potentially leading to the theft of intellectual property or further exploitation of the industrial control environment.

Vendors: [Schneider Electric](https://junglewise.ai/threats/vendors/schneider-electric).

## Quick answers

**Is CVE-2026-6332 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-6332 being exploited in the wild.

**How severe is CVE-2026-6332?** High severity, with a CVSS score of 7.5, published 14 May 2026.

**Which products and versions are affected?** Schneider Electric Ecostruxure Machine Expert Hvac prior to 1.10.0, versions up to (excluding) 1.10.0.

**Is there a fix for CVE-2026-6332?** A patch was published on 2026-05-28: Version 1.10.0 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-6332 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-6332?** Check whether you run Schneider Electric EcoStruxure Control Expert or Schneider Electric Ecostruxure Machine Expert Hvac 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

A cleartext storage of sensitive information vulnerability (CWE-312) exists in Schneider Electric EcoStruxure Machine Expert HVAC versions prior to 1.10.0. The flaw occurs when the software stores sensitive data, such as protected source code, in an unencrypted format on the local file system. An authorized local attacker can exploit this by accessing the source code files during editing or compilation processes. Successful exploitation results in a loss of confidentiality regarding proprietary logic and source code used in Modicon M171-M172 logic controllers. The issue is resolved in version 1.10.0.

## Affected products

- Schneider Electric EcoStruxure Machine Expert HVAC prior to 1.10.0

## Timeline

- 2026-05-20: disclosed
- 2026-05-28: advisory: CISA Advisory ICSA-26-148-07 published
- 2026-05-28: patched: Version 1.10.0 released

## References

- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-07](https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-07)