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CVE-2022-1797

MEDIUM
Published 2022-05-31T19:04:44.000Z
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CVSS Score

V3.1
6.8
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.062
Higher than 6.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Understanding This Vulnerability

This Common Vulnerabilities and Exposures (CVE) entry provides detailed information about a security vulnerability that has been publicly disclosed. CVEs are standardized identifiers assigned by MITRE Corporation to track and catalog security vulnerabilities across software and hardware products.

The severity rating (MEDIUM) indicates the potential impact of this vulnerability based on the CVSS (Common Vulnerability Scoring System) framework. Higher severity ratings typically indicate vulnerabilities that could lead to more significant security breaches if exploited. Security teams should prioritize remediation efforts based on severity, exploit availability, and the EPSS (Exploit Prediction Scoring System) score, which predicts the likelihood of exploitation in the wild.

If this vulnerability affects products or systems in your infrastructure, we recommend reviewing the affected products section, checking for available patches or updates from vendors, and implementing recommended workarounds or solutions until a permanent fix is available. Organizations should also monitor security advisories and threat intelligence feeds for updates about active exploitation of this vulnerability.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

References

Workarounds

If upgrading is not possible, Rockwell Automation recommends the following mitigations:
Use of Microsoft AppLocker or other similar allow list applications can help mitigate risk. Information on using AppLocker with products from Rockwell Automation is available in Knowledgebase article QA17329.
Confirm the least-privilege user principle is followed, and user/service account access to shared resources (such as a database) is only granted with a minimum number of rights as needed.

Please see Rockwell Automation’s security advisory PN1596 for more information.
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559

Solutions

Rockwell Automation recommends users update to the latest firmware version to mitigate this vulnerability. Users are directed towards the risk mitigation provided below and are encouraged (where possible) to combine these with the general security guidelines below to employ multiple strategies simultaneously. Users should go to Rockwell Automation's Product Compatibility & Download Center to download the latest firmware.

CompactLogix 5380, Compact GuardLogix 5380, CompactLogix 5480, ControlLogix 5580, GuardLogix 5580: Upgrade to v33.011 firmware
CompactLogix 5370, Compact GuardLogix 5370, ControlLogix 5570, GuardLogix 5570: Upgrade to v34.011 firmware

Please see Rockwell Automation’s security advisory PN1596 for more information.
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1135559

Credits & Acknowledgments

Rockwell Automation discovered this vulnerability during routine security testing and reported it to CISA.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-5w24-2pmc-xhp3

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

Advisory provided by GitHub Security Advisory Database. Published: June 3, 2022, Modified: June 12, 2022

References

Published: 2022-05-31T19:04:44.000Z
Last Modified: 2025-04-16T16:17:49.601Z
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