High severity7.4NVD Advisory· Published Jan 19, 2026· Updated Apr 15, 2026

CVE-2025-11043

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/Automation Studiollm-fuzzy
Range: <6.5

Patches

Vulnerability mechanics

References

www.br-automation.com/fileadmin/SA25P004-4f45197f.pdfnvd

News mentions

ABB B&R Automation Studio
CISA Alerts

cvss	0.481
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000