Main Vulnerability Database Vulnerabilities #VU48919

Small Space of Random Values in Modicon M221 - CVE-2020-7566

Published: November 19, 2020 / Updated: December 10, 2020

Vulnerability identifier: #VU48919

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2020-7566

CWE-ID:

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vendor: Schneider Electric

Affected software:
Modicon M221

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a small space of random values issue. A remote attacker on the local network can break the encryption keys.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.