How severe is CVE-2022-46670?

CVE-2022-46670 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2022-46670 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46670?

CVE-2022-46670 primarily affects Rockwellautomation Micrologix 1400 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-46670?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-46670 published?

CVE-2022-46670 was published on 2022-12-16 and last updated on 2026-06-17.

CVE-2022-46670

CVE-2022-46670 is a high-severity vulnerability in Rockwellautomation Micrologix 1400 Firmware with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rockwellautomation Micrologix 1400 Firmware
Published: 2022-12-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2022-46670?: 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.
How severe is CVE-2022-46670?: CVE-2022-46670 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2022-46670 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46670?: CVE-2022-46670 primarily affects Rockwellautomation Micrologix 1400 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-46670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-46670 published?: CVE-2022-46670 was published on 2022-12-16 and last updated on 2026-06-17.

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137679

Affected products (5)

cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:micrologix_1400-b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:micrologix_1400-c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:micrologix_1400-a_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Rockwellautomation Micrologix 1400 Firmware

CVE-2015-6490 — Critical (CVSS 9.8): Stack-based buffer overflow on Allen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices through B FRN…
CVE-2021-22659 — High (CVSS 8.6): Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a…
CVE-2018-17924 — High (CVSS 8.6): Rockwell Automation MicroLogix 1400 Controllers and 1756 ControlLogix Communications Modules An unauthenticated, remote…
CVE-2022-3166 — High (CVSS 7.5): Rockwell Automation was made aware that the webservers of the Micrologix 1100 and 1400 controllers contain a…
CVE-2021-32926 — High (CVSS 7.5): When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the…
CVE-2015-6492 — High (CVSS 7.5): Allen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices before B FRN 15.003 allow remote attackers…

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