CVE-2018-7791

CRITICAL Year: 2018
CVSS v3 Score
9.8
Critical
CVSS v2 Score
7.5
High
Weakness Type
CWE-287
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Vulnerability Description

A Permissions, Privileges, and Access Control vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to overwrite the original password with their password. If an attacker exploits this vulnerability and overwrite the password, the attacker can upload the original program from the PLC.

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