CVE-2024-3493

HIGH
Published Apr 15, 2024 Modified Mar 4, 2025 CWE-20

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.

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CVSS v3.1 Score

8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor Product
rockwellautomation controllogix_5580_firmware
rockwellautomation controllogix_5580
rockwellautomation guardlogix_5580_firmware
rockwellautomation guardlogix_5580
rockwellautomation compactlogix_5380_firmware
rockwellautomation compactlogix_5380
rockwellautomation compact_guardlogix_5380_firmware
rockwellautomation compact_guardlogix_5380
rockwellautomation 1756-en4tr_firmware
rockwellautomation 1756-en4tr
rockwellautomation controllogix_5580_process_firmware
rockwellautomation controllogix_5580_process
rockwellautomation compactlogix_5380_process_firmware
rockwellautomation compactlogix_5380_process
rockwellautomation compactlogix_5480_firmware
rockwellautomation compactlogix_5480

References

Frequently Asked Questions

What is CVE-2024-3493? +
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. It has a CVSS v3.1 base score of 8.6 (HIGH).
How severe is CVE-2024-3493? +
CVE-2024-3493 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-3493? +
CVE-2024-3493 affects products from rockwellautomation, specifically: 1756-en4tr, 1756-en4tr_firmware, compact_guardlogix_5380, compact_guardlogix_5380_firmware, compactlogix_5380, compactlogix_5380_firmware, compactlogix_5380_process, compactlogix_5380_process_firmware, compactlogix_5480, compactlogix_5480_firmware, controllogix_5580, controllogix_5580_firmware, controllogix_5580_process, controllogix_5580_process_firmware, guardlogix_5580, guardlogix_5580_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-3493? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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