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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| B&R Industrial Automation | Automation Runtime | 4 – < R4.93, 6 – < 6.5 | R4.93 |
Advisories 2
- SA25P005 B&R Automation Runtime Improper Handling of Flooding conditions on ANSL Server ABB PSIRT · May 14, 2026
- ICSA-26-125-03 ABB B&R Automation Runtime CISA ICS & IT advisories · May 5, 2026