CVE-2025-2223 Schneider Electric CVE debrief

Who should care

OT and ICS teams that operate or support Schneider Electric ConneXium Network Manager, especially engineering workstation owners, plant operators, OT administrators, and security teams responsible for project-file handling and workstation hardening.

Technical summary

The advisory describes a CWE-20 improper input validation issue in Schneider Electric ConneXium Network Manager. The supplied CVSS vector is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a local vector that requires user interaction. The described attack condition is a malicious project file loaded from the local system, which could lead to loss of confidentiality, integrity, and availability on the engineering workstation. The affected product entry lists Schneider Electric ConneXium Network Manager all versions.

Defensive priority

High. The issue can affect engineering workstations and the vendor identifies the product as end of life, so organizations should prioritize verification of project files, containment of file exchange paths, and migration planning where the product remains in use.

Recommended defensive actions

• Only open project files received from a trusted source.
• Compute and regularly verify cryptographic hashes for project files before use.
• Encrypt stored project files and restrict access to trusted users only.
• Use secure communication protocols when exchanging project files over the network.
• Follow workstation, network, and site-hardening guidance from Schneider Electric and CISA.
• Plan for replacement or migration because the product is reported as end of life and no longer supported.

Evidence notes

Source evidence comes from the CISA CSAF advisory ICSA-25-107-03 and Schneider Electric security notice SEVD-2025-098-01. Those sources identify CVE-2025-2223, the impacted product as Schneider Electric ConneXium Network Manager all versions, the flaw as CWE-20 improper input validation, the impact as potential loss of confidentiality, integrity, and availability on an engineering workstation, and the vendor remediation guidance including trusted-file handling, hash verification, encryption, secure transfer, and hardening. The supplied CVSS vector is AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Official resources