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CVE-2021-22704

CRITICAL
9.1
CVSS Score
Published: September 2, 2021 at 04:53 PM UTC
Updated: June 17, 2026 at 03:37 AM UTC
11 products affected across 1 vendorVijeo DesignerEcostruxure Machine ExpertHarmony Gtux

Using 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) by N/A?

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Severity
CRITICAL9.1
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ecostruxure Machine Expert· Schneider Electric
95%
v < 2.02.0
Affected range stops below 2.0, so it looks safe — our inference, not a vendor statement
schneider-electric-harmony-scu (environment)
Vijeo Designer· Schneider Electric
95%
v < 1.2v < 6.2.11
Affected range stops below 1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.11, so it looks safe — our inference, not a vendor statement
schneider-electric-harmony-gk (environment) · schneider-electric-harmony-gto (environment) · schneider-electric-harmony-gtu (environment) · schneider-electric-harmony-gtux (environment) · schneider-electric-harmony-gxu (environment) · schneider-electric-harmony-sto (environment) · schneider-electric-harmony-stu (environment)
Vijeo Designer Basic· Schneider Electric
60%
All versions
Harmony Gk· Schneider Electricdevice
80%
All versions
Harmony Gto· Schneider Electricdevice
80%
All versions
Harmony Gtu· Schneider Electricdevice
80%
All versions
Harmony Gtux· Schneider Electricdevice
80%
All versions
Harmony Gxu· Schneider Electricdevice
80%
All versions
Harmony Scu· Schneider Electricdevice
80%
All versions
Harmony Sto· Schneider Electricdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-01

CVSS

9.1CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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