CVE-2025-11482

B&R Industrial Automation GmbH PPT30 Operating System — kwetsbaarheid CVE-2025-11482

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service.

CVSS 7.5Patch available

This record: live connection— last retrieved: 24 September 2026 at 05:10.

Vendor

B&R Industrial Automation GmbH

Product

PPT30 Operating System

up to version <1.8.0

Published

26 May 2026

Last modified

24 July 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

CVSS 3.1 — vector details

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

Attack vector

NETWORK

Privileges required

NONE

User interaction

NONE

Confidentiality

None

Integrity

None

Availability

High

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.3%

Percentile

25e

Source: FIRST.org, updated on 23 September 2026.

Patch information

The problem is corrected in the following product versions: PPT30 Operating System 1.8.0 The OPC-UA server is not activated by default. B&R recommends that customers with the OPC-UA Server enabled to install the update at their earliest opportunity. The process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual.

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

54/ 100

Based on CVSS 7.5, EPSS 0.3%, industrial relevance 80/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Network access to the affected device or segment is required.
•No valid credentials are needed.
•No user interaction required.

Operational impact & energy relevance

Possible loss of visibility of or control over the process upon successful exploitation.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Productbeschrijving komt overeen met de categorie "opc-server", een typisch OT/ICS-componenttype. Vendor "B&R Industrial Automation GmbH" is a known supplier of equipment for the energy sector. Description mentions industrial protocol: opc-ua.

Recommended defensive measures

•Test failover and recovery procedures in case the system fails.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

80/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Product description matches the category "opc-server", a typical OT/ICS component type.
• Vendor "B&R Industrial Automation GmbH" is a known supplier of equipment for the energy sector.
• Description mentions industrial protocol: opc-ua.

Automatically classified as industrially relevant based on CISA/NVD signals (see reasons).

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 24 September 2026.

IEC 62443 mapping

IEC 62443-3-3FR7 · Beschikbaarheid van middelen

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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