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.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
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
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.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-11482 being exploited?
There is no known exploitation of CVE-2025-11482 in the wild and no public exploit code.
Sources
Also known as GHSA-32cv-rh96-xx2f.