Description
The DNP3 feature on Rockwell Automation Allen-Bradley MicroLogix 1400 1766-Lxxxxx A FRN controllers 7 and earlier and 1400 1766-Lxxxxx B FRN controllers before 15.001 allows remote attackers to cause a denial of service (process disruption) via malformed packets over (1) an Ethernet network or (2) a serial line.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Rockwell Automation | Allen-Bradley MicroLogix 1400 | ≤ 1766-Lxxxxx Series A FRN 7, ≤ 1766-Lxxxxx Series B FRN 15.000 | Series B FRN 15.001 or higher |
Advisories 1
- ICSA-14-254-02 Rockwell Micrologix 1400 DNP3 DOS Vulnerability CISA ICS & IT advisories · Jun 6, 2025