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.
Published: 2026-01-19
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

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History

Tue, 20 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Jan 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Br-automation
Br-automation automation Studio
Br-automation studio
Vendors & Products Br-automation
Br-automation automation Studio
Br-automation studio

Mon, 19 Jan 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title Improper Server Certificate Validation in Automation Studio
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': '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'}


Subscriptions

Br-automation Automation Studio Studio
cve-icon MITRE

Status: PUBLISHED

Assigner: ABB

Published:

Updated: 2026-01-20T20:06:44.198Z

Reserved: 2025-09-26T09:17:05.598Z

Link: CVE-2025-11043

cve-icon Vulnrichment

Updated: 2026-01-20T19:37:27.503Z

cve-icon NVD

Status : Deferred

Published: 2026-01-19T16:15:52.873

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-11043

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-20T08:40:55Z

Weaknesses