Is CVE-2021-31769 actively exploited?

No active exploitation of CVE-2021-31769 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-31769 be exploited remotely?

Yes. CVE-2021-31769 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-31769?

CVE-2021-31769 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-31769

CWE-78Published: June 21, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

MyQ Server in MyQ X Smart before 8.2 allows remote code execution by unprivileged users because administrative session data can be read in the %PROGRAMFILES%\MyQ\PHP\Sessions directory. The "Select server file" feature is only intended for administrators but actually does not require authorization. An attacker can inject arbitrary OS commands (such as commands to create new .php files) via the Task Scheduler component.

NVD Source

Technical Analysis

CVE-2021-31769 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.