Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer overflow resulting in a denial-of-service condition. The FAULT LED will flash RED and communications may be lost. Recovery from denial-of-service condition requires the fault to be cleared by the user.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2021-03-25T15:59:07

Updated: 2024-08-03T18:51:07.020Z

Reserved: 2021-01-05T00:00:00

Link: CVE-2021-22659

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-03-25T16:15:14.040

Modified: 2021-03-31T15:56:20.927

Link: CVE-2021-22659

cve-icon Redhat

No data.