# CVE-2025-11482: Allocation of Resources Without Limits or Throttling in the OPC-UA Server

> Unauthenticated attackers can cause permanent denial of service in the OPC-UA Server of PPT30 Operating System by exhausting resources.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 May 2026
- **Updated:** 26 May 2026
- **Also known as:** GHSA-32cv-rh96-xx2f

## What is CVE-2025-11482?

CVE-2025-11482 is a high-severity denial of service vulnerability in B&R Industrial Automation GmbH PPT30 Operating System, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2025-11482?


## How do I fix CVE-2025-11482?

No fix has been published for CVE-2025-11482 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11482 being exploited?

There is no known exploitation of CVE-2025-11482 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11482 and fix it if it is affected.

What it is: CVE-2025-11482 is a high-severity denial of service vulnerability in B&R Industrial Automation GmbH PPT30 Operating System, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-11482 in the wild and no public exploit code.

Affected product: B&R Industrial Automation GmbH PPT30 Operating System. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-11482/ (Markdown: https://insights.sbomify.com/CVE-2025-11482/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11482
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11482
- OSV: https://osv.dev/vulnerability/CVE-2025-11482

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11482/
Summaries are generated and may contain mistakes; the official description above is the record.