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High 7.4Published Jan 19, 2026

CVE-2025-11043Improper Server Certificate Validation in Automation Studio

Updated under an hour ago ()

Does this affect you?

It affects B&R Industrial Automation GmbH B&R Automation Studio. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-295
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
ABB
NVD analysis
Deferred
Record last updated
Jan 20, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
B&R Industrial Automation GmbH B&R Automation Studio
b_and_r_industrial_automation:b_and_r_automation_studio (from the name)
4; from 6 before 6.5
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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