Summary
Successful exploitation of these vulnerabilities could risk privilege escalation, which could result in remote code execution.
The following versions of Schneider Electric Plant iT/Brewmaxx are affected:
- Plant iT/Brewmaxx 9.60_and_above (CVE-2025-49844, CVE-2025-46817, CVE-2025-46818, CVE-2025-46819)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 9.9 | Schneider Electric | Schneider Electric Plant iT/Brewmaxx | Use After Free, Integer Overflow or Wraparound, Improper Control of Generation of Code (‘Code Injection’) |
Background
- Critical Infrastructure Sectors: Energy, Critical Manufacturing, Commercial Facilities
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: France
Vulnerabilities
CVE-2025-49844
The affected product uses Redis, an open-source, in-memory database. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free, and potentially lead to remote code execution.
Affected Products
Schneider Electric Plant iT/Brewmaxx
Schneider Electric
Schneider Electric Plant iT/Brewmaxx: 9.60_and_above
known_affected
Remediations
Mitigation
Schneider Electric recommends users immediately apply the following mitigations to reduce the risk of exploit:
Mitigation
Install Patch ProLeiT-2025-001 via ProLeiT Support
https://www.proleit.com/support/
Mitigation
After installing ProLeiT-2025-001, disable the eval commands in Redis on the application server, VisuHub, engineering workstations, and workstations with emergency mode functionality
Mitigation
Force usage of secure Redis configuration templates in system settings as documented in the patch manual
Mitigation
Restart all patched servers and workstations
Mitigation
Schneider Electric strongly recommends the following industry cybersecurity best practices.
Mitigation
Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
Mitigation
Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
Mitigation
Place all controllers in locked cabinets and never leave them in the “Program” mode.
Mitigation
Never connect programming software to any network other than the network intended for that device.
Mitigation
Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
Mitigation
Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
Mitigation
Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.
Mitigation
When remote access is required, use secure methods, such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
Mitigation
For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
https://www.se.com/us/e
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