CVE-2018-7809

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the password delete function of the web server.

• CWE-640

• https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/Vendor Advisory
• https://www.tenable.com/security/research/tra-2018-38Exploit, Third Party Advisory
• https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/Vendor Advisory
• https://www.tenable.com/security/research/tra-2018-38Exploit, Third Party Advisory

Published

Nov 30, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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