CVE-2025-11044 Vulnerability on Automation Runtime my cause DoS Conditions
An unauthenticated attacker can cause permanent denial-of-service on B&R Automation Runtime devices by exploiting a race condition in the ANSL-Server component.
- 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-2025-11044?
CVE-2025-11044 is a high-severity denial of service vulnerability in B&R Industrial Automation GmbH Automation Runtime, published on 19 Jan 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 ANSL-Server component of B&R Automation Runtime versions prior to 6.5 and prior to R4.93 could be exploited by an unauthenti-cated attacker on the network to win a race condition, resulting in permanent denial-of-service (DoS) conditions on affected devices.
Weakness: CWE-770
Which versions are affected by CVE-2025-11044?
How do I fix CVE-2025-11044?
No fix has been published for CVE-2025-11044 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-2025-11044 being exploited?
There is no known exploitation of CVE-2025-11044 in the wild and no public exploit code.
Sources
Also known as GHSA-37rh-77hj-3pmr.