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Fencer Vulns
high 8.6

CVE-2022-3752 json

Rockwell Automation GuardLogix and ControlLogix controllers Vulnerable to Denial-Of-Service Attack

published 2022-12-19 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-43107

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

An unauthorized user could use a specially crafted sequence of Ethernet/IP messages, combined with heavy traffic loading to cause a denial-of-service condition in Rockwell Automation Logix controllers resulting in a major non-recoverable fault. If the target device becomes unavailable, a user would have to clear the fault and redownload the user project file to bring the device back online and continue normal operation.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-342-03 updated cvss 8.6

Rockwell Automation Logix controllers

  • Rockwell Automation Compact GuardLogix 5380 controllers >= 31.011 Rockwell Automation CompactLogix 5380 controllers >= 31.011 Rockwell Automation CompactLogix 5480 controllers >= 31.011 Rockwell Automation ControlLogix 5580 controllers >= 31.011 Rockwell Automation GuardLogix 5580 controllers >= 31.011
    affected: mitigation “32.016 and later for versions 32” compatibility.rockwellautomation.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Rockwell Automation CompactLogix 5480
  • Rockwell Automation ControlLogix 5580
  • Rockwell Automation GuardLogix 5580
  • Rockwell Automation Compact GuardLogix 5380
  • Rockwell Automation CompactLogix 5380

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.