# CVE-2016-9154

## Summary

- **CVE ID:** CVE-2016-9154
- **Severity:** UNKNOWN
- **CVSS Score:** 0.05
- **CWE:** CWE-332
- **Published:** Dec 23, 2016
- **Last Modified:** Mar 14, 2026

## Description

Siemens Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 for Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D (All firmware versions < V6.00.046) and Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 for Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U (All firmware versions < V6.00.046) use a pseudo random number generator with insufficient entropy to generate certificates for HTTPS, potentially allowing remote attackers to reconstruct the corresponding private key.

## Affected Products

- n/a — Desigo PX Web modules with all firmware versions < V6.00.046 (Desigo PX Web modules with all firmware versions < V6.00.046)

## References

- [CNA](http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-856492.pdf)
- [CNA](http://www.securityfocus.com/bid/94962)
- [CNA](https://ics-cert.us-cert.gov/advisories/ICSA-16-355-01)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.17%
- **EPSS Percentile:** 78.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._