CVE-2021-22704

Name: CVE-2021-22704
Creator: NVD / NIST
Published: 2021-09-02T17:15:08.06+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.24%

Last modified Jun 17, 2026

CVE-2021-22704 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A CWE-22: Improper Limitation of a Pathname to a Restricted Directory vulnerability exists in Harmony/HMI Products Configured by Vijeo Designer (all versions prior to V6.2 SP11 ), Vijeo Designer Basic (all versions prior to V1.2), or EcoStruxure Machine Expert (all versions prior to V2.0) that could cause a Denial of Service or unauthorized access to system information when connecting to the Harmony HMI over FTP.. EPSS estimates a 1.24% chance of exploitation in the next 30 days.

Description

A CWE-22: Improper Limitation of a Pathname to a Restricted Directory vulnerability exists in Harmony/HMI Products Configured by Vijeo Designer (all versions prior to V6.2 SP11 ), Vijeo Designer Basic (all versions prior to V1.2), or EcoStruxure Machine Expert (all versions prior to V2.0) that could cause a Denial of Service or unauthorized access to system information when connecting to the Harmony HMI over FTP.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.24%

65.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Schneider-Electric	Vijeo Designer	< 6.2.11
Schneider-Electric	Vijeo Designer	< 1.2
Schneider-Electric	Ecostruxure Machine Expert	< 2.0
Schneider-Electric	Ecostruxure Machine Expert	2.0

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-01Vendor Advisory
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-01Vendor Advisory

Timeline

Published: Sep 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22704?

How severe is CVE-2021-22704?

CVE-2021-22704 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22704?

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-2021-22704?

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

Scan your code now

Source: NVD / NIST