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Fencer Vulns
high 7.1

CVE-2022-46670 json

Rockwell Automation MicroLogix 1100 & 1400 Vulnerable to Cross-Site Scripting Attack

published 2022-12-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-49466

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

Rockwell Automation was made aware of a vulnerability by a security researcher from Georgia Institute of Technology that the MicroLogix 1100 and 1400 controllers contain a vulnerability that may give an attacker the ability to accomplish remote code execution.  The vulnerability is an unauthenticated stored cross-site scripting vulnerability in the embedded webserver. The payload is transferred to the controller over SNMP and is rendered on the homepage of the embedded website.

Vendor advisories

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

cisa ICSA-22-354-04 updated cvss 7.1

Rockwell Automation MicroLogix 1100 and 1400

  • Rockwell Automation MicroLogix 1100 Rockwell Automation MicroLogix 1400 A <= 7.000 Rockwell Automation MicroLogix 1400 B/C <= 21.007
    affected: mitigation “Disable the web server, if possible (This component is an optional feature and disabling it will not disrupt the intended use of the device)” 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
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Rockwell Automation MicroLogix 1100 & 1400 Controllers
  • Rockwell Automation MicroLogix 1400-B/C
  • Rockwell Automation MicroLogix 1400-A

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.