What’s Vulnerable › Vulnerabilities
CVE-2025-11043: Improper Server Certificate Validation in Automation Studio
- Severity: high (CVSS 7.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-01-19 · updated 2026-06-17
- Weakness: CWE-295
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: from 6 before 6.5; 4 — fixed in 6.5
How to fix
Upgrade to a fixed version: B&R Industrial Automation GmbH B&R Automation Studio 6.5. Check the vendor advisory for mitigations.
References
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