Is CVE-2021-27438 actively exploited?

No active exploitation of CVE-2021-27438 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-27438 be exploited remotely?

Yes. CVE-2021-27438 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-27438?

CVE-2021-27438 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-27438

CWE-94Published: March 25, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

The software contains a hard-coded password it uses for its own inbound authentication or for outbound communication to external components on the Reason DR60 (all firmware versions prior to 02A04.1).

NVD Source

Technical Analysis

CVE-2021-27438 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 8.8.