CVE-2021-22704

9.1 CRITICAL 1% exploit odds Fix listed Disclosure Device

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, service disruption.
Exploit odds: 1.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-09-02 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:37 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.3% in the next 30 days (EPSS).
Severity: 9.1 CRITICAL (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-09-02 17:15 UTC
Last modified: 2026-06-17 03:37 UTC
Exploit probability: 1.3% · EPSS, next 30 days
Weakness: CWE-22 · Path traversal
Record status: Modified

Affected

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

Attack profile CVSS 3.1 · 9.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-22704.md and follow it. Check whether this project is affected by CVE-2021-22704. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record