Is CVE-2021-27450 actively exploited?

No active exploitation of CVE-2021-27450 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-27450 be exploited remotely?

No. CVE-2021-27450 requires local access to exploit.

What is the CVSS score of CVE-2021-27450?

CVE-2021-27450 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-27450

HIGH

CVE-2021-27450

CWE-326Published: March 25, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

SSH server configuration file does not implement some best practices. This could lead to a weakening of the SSH protocol strength, which could lead to additional misconfiguration or be leveraged as part of a larger attack on the MU320E (all firmware versions prior to v04A00.1).

NVD Source

Technical Analysis

CVE-2021-27450 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.