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Vulnerability record · CVE-2022-3752 · published 19 December 2022

CVE-2022-3752: Rockwellautomation compactlogix 5480 firmware improper input validation vulnerability

Rockwellautomation · Compactlogix 5480 Firmware

An unauthorized user could use a specially crafted sequence of Ethernet/IP messages, combined with heavy traffic loading to cause a denial-of-service condition in Rockwell Automation Logix controllers resulting in a major non-recoverable 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 and continue normal operation.

7.5 CVSS 3.1 High EPSS 1.2% · top 32.5% CWE-20 · Improper input validation
7.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

An unauthorized user could use a specially crafted sequence of Ethernet/IP messages, combined with heavy traffic loading to cause a denial-of-service condition in Rockwell Automation Logix controllers resulting in a major non-recoverable 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 and continue normal operation.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137664 Permissions RequiredVendor Advisory
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137664 Permissions RequiredVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-3752), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.