CVE-2025-11043 — HIGH (7.4)

Vulnerability 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.

CVSS Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-295

References

https://www.br-automation.com/fileadmin/SA25P004-4f45197f.pdf

FAQ

What is CVE-2025-11043?

CVE-2025-11043 is a vulnerability with a CVSS score of 7.4 (HIGH). 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 p...

How severe is CVE-2025-11043?

CVE-2025-11043 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-11043?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.