# CVE-2025-40800

## Summary

- **CVE ID:** CVE-2025-40800
- **Severity:** CRITICAL
- **CVSS Score:** 9.1 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-295
- **Published:** Dec 9, 2025
- **Last Modified:** Mar 10, 2026

## Description

A vulnerability has been identified in COMOS V10.6 (All versions < V10.6.1), COMOS V10.6 (All versions < V10.6.1), NX V2412 (All versions < V2412.8700), NX V2506 (All versions < V2506.6000), Simcenter 3D (All versions < V2506.6000), Simcenter Femap (All versions < V2506.0002), Solid Edge SE2025 (All versions < V225.0 Update 10), Solid Edge SE2026 (All versions < V226.0 Update 1). The IAM client in affected products is missing server certificate validation while establishing TLS connections to the authorization server. This could allow an attacker to perform a man-in-the-middle attack.

## Affected Products

- Siemens — COMOS V10.6 (0)
- Siemens — NX V2412 (0)
- Siemens — NX V2506 (0)
- Siemens — Simcenter 3D (0)
- Siemens — Simcenter Femap (0)
- Siemens — Solid Edge SE2025 (0)
- Siemens — Solid Edge SE2026 (0)

## References

- [CNA](https://cert-portal.siemens.com/productcert/html/ssa-868571.html)
- [CNA](https://cert-portal.siemens.com/productcert/html/ssa-212953.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 10.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._