CVE-2022-1797

Name: CVE-2022-1797
Creator: NVD / NIST
Published: 2022-06-02T14:15:33.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 1.92%

Last modified Jun 17, 2026

CVE-2022-1797 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A malformed Class 3 common industrial protocol message with a cached connection can cause a denial-of-service condition in Rockwell Automation Logix Controllers, resulting in a major nonrecoverable 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.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

Description

A malformed Class 3 common industrial protocol message with a cached connection can cause a denial-of-service condition in Rockwell Automation Logix Controllers, resulting in a major nonrecoverable 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.

Metrics

CVSS 3.1

8.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

1.92%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Rockwellautomation	Compactlogix 5380 Firmware	< 33.011
Rockwellautomation	Compact Guardlogix 5380 Firmware	< 33.011
Rockwellautomation	Compactlogix 5480 Firmware	< 33.011
Rockwellautomation	Controllogix 5580 Firmware	< 33.011
Rockwellautomation	Guardlogix 5580 Firmware	< 33.011
Rockwellautomation	Compactlogix 5370 Firmware	< 34.011
Rockwellautomation	Compact Guardlogix 5370 Firmware	< 34.011
Rockwellautomation	Controllogix 5570 Firmware	< 34.011
Rockwellautomation	Guardlogix 5570 Firmware	< 34.011

References

https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559Permissions Required, Vendor Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-01Third Party Advisory, US Government Resource
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559Permissions Required, Vendor Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-144-01Third Party Advisory, US Government Resource

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-1797?

How severe is CVE-2022-1797?

CVE-2022-1797 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.

How do I fix CVE-2022-1797?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-1797?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST