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CVE

CVE-2024-3493

A specific malformed fragmented packet type (fragmented packets may be generated automatically by devices that send larg

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.

HIGH · CVSS 8.6 EPSS 0.00046
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
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Affected Products & Versions

8
rockwellautomation controllogix 5580 firmwareall versions
rockwellautomation guardlogix 5580 firmwareall versions
rockwellautomation compactlogix 5380 firmwareall versions
rockwellautomation compact guardlogix 5380 firmwareall versions
rockwellautomation 1756-en4tr firmwareall versions
rockwellautomation controllogix 5580 process firmwareall versions
rockwellautomation compactlogix 5380 process firmwareall versions
rockwellautomation compactlogix 5480 firmwareall versions
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Scoring & Timeline

8.6
HIGH · CVSS v3.1 · PSIRT@rockwellautomation.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Apr 2024 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2024-icsa-24-107-03
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.rockwellautomation.com/en-us/support/advisory.SD1666.htmlBroken Link
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