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Fencer Vulns
high 8.6

CVE-2022-3157 json

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

published 2022-12-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42581

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

A vulnerability exists in the Rockwell Automation controllers that allows a malformed CIP request to cause a major non-recoverable fault (MNRF) and a denial-of-service condition (DOS).

Vendor advisories

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

cisa ICSA-22-354-02 updated cvss 8.6

Rockwell Automation GuardLogix and ControlLogix controllers

  • Rockwell Automation Compact GuardLogix 5370 28-33 Rockwell Automation CompactLogix 5370 20-33 Rockwell Automation ControlLogix 5570 20-33 Rockwell Automation ControlLogix5570 redundancy 20-33 Rockwell Automation GuardLogix 5570 20-33
    affected: mitigation “For CompactLogix 5370, Compact GuardLogix 5370, ControlLogix 5570, GuardLogix 5570: Users should upgrade to versions 33.013, 34.011, or later.” rockwellautomation.custhelp.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

1.52% chance of exploitation in the next 30 days, higher than 74% 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 5370
  • Rockwell Automation Compact GuardLogix
  • Rockwell Automation ControlLogix 5570
  • Rockwell Automation ControlLogix 5570 Redundancy
  • Rockwell Automation GuardLogix 5570

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.