Critical severity9.8NVD Advisory· Published Dec 28, 2021· Updated Jun 17, 2026
CVE-2021-37401
CVE-2021-37401
Description
An attacker may obtain the user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the PLC user program may be uploaded, altered, and/or downloaded.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
4- jvn.jp/en/vu/JVNVU92279973/nvdThird Party Advisory
- us.idec.com/idec-us/en/USD/Programmable-Logic-Controller/Micro-PLC/FC6A-MicroSmart/c/MicroSmart_FC6AnvdVendor Advisory
- us.idec.com/idec-us/en/USD/Software-Downloads-Automation-OrganizernvdVendor Advisory
- www.idec.com/home/lp/pdf/2021-12-24-PLC.pdfnvdVendor Advisory
News mentions
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