Description
An exploitable denial of service vulnerability exists in the Ethernet functionality of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted packet can cause a device power cycle resulting in a fault state and deletion of ladder logic. An attacker can send one unauthenticated packet to trigger this vulnerability
Metrics
CVSS 3.0 7.5/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Talos | Allen Bradley | Allen Bradley Micrologix 1400 Series B FRN 21.2, Allen Bradley Micrologix 1400 Series B FRN 21.0, Allen Bradley Micrologix 1400 Series B FRN 15 |
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0440Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0440Exploit, Third Party Advisory
Timeline
- Published
- Apr 5, 2018
- Last modified
- Jun 17, 2026
- NVD status
- Modified