CVE-2025-11043

CRITICAL EPSS 10.7%

Published Jan 19, 20265mo ago · Modified Jun 17, 20261w ago

9.1 CVSS 4.0

Critical

Published Jan 19, 2026 5mo ago

Last Modified Jun 17, 2026 1w ago

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 Details

Base Score

9.1

Exploitability

—

Impact

—

Vector string

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

10.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-295

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.