Is CVE-2021-42025 actively exploited?

No active exploitation of CVE-2021-42025 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-42025 be exploited remotely?

Yes. CVE-2021-42025 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-42025?

CVE-2021-42025 has a CVSS score of 6.5 (MEDIUM).

HOME VULNERABILITIESCVE-2021-42025

MEDIUM

CVE-2021-42025

CWE-863Published: November 9, 2021· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

A vulnerability has been identified in Mendix Applications using Mendix 8 (All versions < V8.18.13), Mendix Applications using Mendix 9 (All versions < V9.6.2). Applications built with affected versions of Mendix Studio Pro do not properly control write access for certain client actions. This could allow authenticated attackers to manipulate the content of System.FileDocument objects in some cases, regardless whether they have write access to it.

NVD Source

Technical Analysis

CVE-2021-42025 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 full integrity compromise (data manipulation), with a CVSS base score of 6.5.