Vulnerability · Published Apr 15, 2024 · Assigned by Rockwell
CVE-2024-3493Rockwell Automation ControlLogix and GaurdLogix Vulnerable to Major Nonrecoverable Fault Due to Invalid Header Value
High 8.6
In plain English
A high-severity improper input validation in 1756-EN4TR from Rockwell Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Official description
A specific malformed fragmented packet type (fragmented packets may be generated automatically by devices that send large amounts of data) can cause a major nonrecoverable fault (MNRF) Rockwell Automation's ControlLogix 5580, Guard Logix 5580, CompactLogix 5380, and 1756-EN4TR. If exploited, the affected product will become unavailable and require a manual restart to recover it. Additionally, an MNRF could result in a loss of view and/or control of connected devices.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Rockwell Automation | ControlLogix 5580 | v35.011 |
| Rockwell Automation | GuardLogix 5580 | v35.011 |
| Rockwell Automation | CompactLogix 5380 | v5.001 |
| Rockwell Automation | 1756-EN4TR | v5.001 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H