CVE-2021-33718

Name: CVE-2021-33718
Creator: NVD / NIST
Published: 2021-07-13T11:15:10.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2021-33718 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability has been identified in Mendix Applications using Mendix 7 (All versions < V7.23.22), Mendix Applications using Mendix 8 (All versions < V8.18.7), Mendix Applications using Mendix 9 (All versions < V9.3.0). Write access checks of attributes of an object could be bypassed, if user has a write permissions to the first attribute of this object.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in Mendix Applications using Mendix 7 (All versions < V7.23.22), Mendix Applications using Mendix 8 (All versions < V8.18.7), Mendix Applications using Mendix 9 (All versions < V9.3.0). Write access checks of attributes of an object could be bypassed, if user has a write permissions to the first attribute of this object.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.58%

43.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Siemens	Mendix	>= 7.0, < 7.23.22
Siemens	Mendix	>= 8.0, < 8.18.7
Siemens	Mendix	>= 9.0, < 9.3.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-352521.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-352521.pdfVendor Advisory

Timeline

Published: Jul 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33718?

How severe is CVE-2021-33718?

CVE-2021-33718 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33718?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33718?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST