Is CVE-2021-27394 actively exploited?

No active exploitation of CVE-2021-27394 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-27394 be exploited remotely?

Yes. CVE-2021-27394 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-27394?

CVE-2021-27394 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-27394

HIGH

CVE-2021-27394

CWE-269Published: April 16, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A vulnerability has been identified in Mendix Applications using Mendix 7 (All versions < V7.23.19), Mendix Applications using Mendix 8 (All versions < V8.17.0), Mendix Applications using Mendix 8 (V8.12) (All versions < V8.12.5), Mendix Applications using Mendix 8 (V8.6) (All versions < V8.6.9), Mendix Applications using Mendix 9 (All versions < V9.0.5). Authenticated, non-administrative users could modify their privileges by manipulating the user role under certain circumstances, allowing them to gain administrative privileges.

NVD Source

Technical Analysis

CVE-2021-27394 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.