# CVE-2025-40804

## Summary

- **CVE ID:** CVE-2025-40804
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-732
- **Published:** Sep 9, 2025
- **Last Modified:** Mar 12, 2026

## Description

A vulnerability has been identified in SIMATIC Virtualization as a Service (SIVaaS) (All versions). The affected application exposes a network share without any authentication. This could allow an attacker to access or alter sensitive data without proper authorization.

## Affected Products

- Siemens — SIMATIC Virtualization as a Service (SIVaaS) (0)

## References

- [CNA](https://cert-portal.siemens.com/productcert/html/ssa-534283.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 33.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._