A vulnerability identified as a Resource Exhaustion weakness (CWE‑770) in the 1719‑AENTR device, and likely affecting 1718‑AENTR, causes the device to become overloaded when it receives a controlled UDP unicast network storm. The improper handling of the traffic leads to a loss of communication that can only be restored by physically cycling the power. The resulting impact is a denial of operations dependent on the device.

Rockwell Automation 1718-AENTR and 1719-AENTR devices are affected.

The CVSS score of 8.7 indicates a high severity. The EPSS score of less than 1% shows that real‑world exploitation is currently very unlikely, and the vulnerability is not listed in CISA. Based on the description, it is inferred that an attacker would need network access to the device, which could be achieved from an internal network or from a compromised external point.