# CVE-2025-11043

## Summary

- **CVE ID:** CVE-2025-11043
- **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:** Jan 19, 2026
- **Last Modified:** Mar 12, 2026

## Description

An Improper Certificate Validation vulnerability in the OPC-UA client and ANSL over TLS client used in Automation Studio versions before 6.5 could allow an unauthenticated attacker on the network to position themselves to intercept and interfere with data exchanges.

## Affected Products

- B&R Industrial Automation GmbH — B&R Automation Studio (4)
- B&R Industrial Automation GmbH — B&R Automation Studio (6)

## References

- [CNA](https://www.br-automation.com/fileadmin/SA25P004-4f45197f.pdf)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.7

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