# CVE-2025-11482: ABB PPT30 OS resource exhaustion in OPC-UA Server

Source: https://junglewise.ai/threats/cve-2025-11482-abb-ppt30-os-resource-exhaustion-in-opc-ua-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-26. Updated: 2026-05-26  
License: CC BY 4.0 with a link back

CVE-2025-11482 · Severity: high · CVSS 7.5 · Published 2026-05-26

A denial-of-service vulnerability exists in the OPC-UA Server component of the ABB PPT30 operating system, which is used in industrial automation environments. An attacker can exploit this flaw over the network without needing any login credentials to crash the service or make it unresponsive. This can permanently prevent operators from monitoring or controlling industrial processes, potentially leading to significant operational downtime.

Vendors: [ABB](https://junglewise.ai/threats/vendors/abb).

## Quick answers

**Is CVE-2025-11482 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-11482 being exploited in the wild.

**How severe is CVE-2025-11482?** High severity, with a CVSS score of 7.5, published 26 May 2026.

**Which products and versions are affected?** ABB PPT30 Operating System before 1.8.0.

**Is there a fix for CVE-2025-11482?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-11482 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2025-11482?** Check whether you run ABB PPT30 Operating System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is classified as CWE-770 (Allocation of Resources Without Limits or Throttling) within the OPC-UA Server of the ABB PPT30 Operating System. It stems from a failure to properly limit or throttle resource consumption, which can be triggered by an unauthenticated attacker via the network. Successful exploitation allows the attacker to exhaust system resources, leading to a permanent denial-of-service (DoS) that prevents legitimate users from interacting with the service. The issue is addressed in PPT30 Operating System version 1.8.0.

## Affected products

- ABB PPT30 Operating System before 1.8.0

## Timeline

- 2026-05-26: advisory: Initial NVD publication and ABB advisory release

## References

- [https://br-cws-assets.de-fra-1.linodeobjects.com/SA25P006-0eec719c.pdf](https://br-cws-assets.de-fra-1.linodeobjects.com/SA25P006-0eec719c.pdf)