BlackTreeIndependent security intelligence
← Back to the CVE catalogue
Full vulnerability report · 2022
CVE-2022-24323High confidence

Schneider Electric EcoStruxure Process Expert — Improper Check for Unusual or Exceptional Conditions

Schneider Electric · EcoStruxure Process Expert

5.3MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SEVD-2022-067-01 · CSAF 2.0 · revision 2 · finalSchneider Electric CPCERTEcoStruxureTM Control Expert, EcoStruxureTM Process Expert, SCADAPack RemoteConnect™ for x70
3 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Schneider Electric EcoStruxure™ Control Expert <=V15.0 SP1
  • Schneider Electric EcoStruxure™ Process Expert <V2021
  • Schneider Electric SCADAPack RemoteConnect™ for x70 <R2.7.3
Summary
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a disruption of communication between the Modicon controller and the engineering software, when an attacker is able to intercept and manipulate specific Modbus response data.
Remediation
Version 15.1 of EcoStruxure™ Control Expert includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_V15.1/ Customers using Unity Pro should strongly consider migrating to EcoStruxure™ Control Expert. If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: To mitigate the risks associated to Modbus weaknesses, users should immediately: • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-29221

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a disruption of communication between the Modicon controller and the engineering software, when an attacker is able to intercept and manipulate specific Modbus response data. Affected Product: EcoStruxure Process Expert (V2021 and prior), EcoStruxure Control Expert (V15.0 SP1 and prior)

What

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a disruption of communication between the Modicon controller and the engineering software, when an attacker is able to intercept and manipulate specific Modbus response data. Affected Product: EcoStruxure Process Expert (V2021 and prior), EcoStruxure Control Expert (V15.0 SP1 and prior)

Why

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a disruption of communication between the Modicon controller and the engineering software, when an attacker is able to intercept and manipulate specific Modbus response data. Affected Product: EcoStruxure Process Expert (V2021 and prior), EcoStruxure Control Expert (V15.0 SP1 and prior)

Why

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Check for Unusual or Exceptional Conditions → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-754 ↗

CWE-754: Improper Check for Unusual or Exceptional Conditions. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-754
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2022-AVI-546Multiples vulnérabilités dans les produits Schneider

ecord?id=CVE-2021-22697 Référence CVE CVE-2021-22698 https://www.cve.org/CVERecord?id=CVE-2021-22698 Référence CVE CVE-2022-0223 https://www.cve.org/CVERecord?id=CVE-2022-0223 Référence CVE CVE-2022-0715 https://www.cve.org/CVERecord?id=CVE-2022-0715 Référence CVE CVE-2022-22731 https://www.cve.org/CVERecord?id=CVE-2022-22731 Référence CVE CVE-2022-22732 https://www.cve.org/CVERecord?id=CVE-2022-22732 Référence CVE CVE-2022-22805 https://www.cve.org/CVERecord?id=CVE-2022-22805 Référence CVE CVE-2022-22806 https://www.cve.org/CVERecord?id=CVE-2022-22806 Référence CVE CVE-2022-24322 https://www.cve.org/CVERecord?id=CVE-2022-24322 Référence CVE CVE-2022-24323 https://www.cve.org/CVERecord?id=CVE-2022-24323 Référence CVE CVE-2022-32512 https://www.cve.org/CVERecord?id=CVE-2022-32512 Référence CVE CVE-2022-32513 https://www.cve.org/CVERecord?id=CVE-2022-32513 Référence CVE CVE-2022-32514 https://www.cve.org/CVERecord?id=CVE-2022-32514 Référence CVE CVE-2022-32515 https://www.cve.org/CVERecord?id=CVE-2022-32515 Référence CVE CVE-2022-32516 https://www.cve.org/CVERecord?id=CVE-2022-32516 Référence CVE CVE-2022-32517 https://www.cve.org/CVERecord?id=CVE-2022-32517 Référence CVE CVE-2022-32518 https://www.cve.org/CVERecord?id=CVE-2022-32518 Référence CVE CVE-2022-32519 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2022-AVI-215Multiples vulnérabilités dans les produits Schneider

ord?id=CVE-2021-22781 Référence CVE CVE-2021-22782 https://www.cve.org/CVERecord?id=CVE-2021-22782 Référence CVE CVE-2021-22783 https://www.cve.org/CVERecord?id=CVE-2021-22783 Référence CVE CVE-2021-22797 https://www.cve.org/CVERecord?id=CVE-2021-22797 Référence CVE CVE-2021-34527 https://www.cve.org/CVERecord?id=CVE-2021-34527 Référence CVE CVE-2022-0715 https://www.cve.org/CVERecord?id=CVE-2022-0715 Référence CVE CVE-2022-22805 https://www.cve.org/CVERecord?id=CVE-2022-22805 Référence CVE CVE-2022-22806 https://www.cve.org/CVERecord?id=CVE-2022-22806 Référence CVE CVE-2022-24322 https://www.cve.org/CVERecord?id=CVE-2022-24322 Référence CVE CVE-2022-24323 https://www.cve.org/CVERecord?id=CVE-2022-24323 Gestion détaillée du document le 08 mars 2022 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Schneider Electric EcoStruxure™ Control Expert <=V15.0 SP1; Schneider Electric EcoStruxure™ Process Expert <V2021; Schneider Electric SCADAPack RemoteConnect™ for x70 <R2.7.3
Fixed
Schneider Electric EcoStruxure™ Control Expert V15.1; Schneider Electric EcoStruxure™ Process Expert 2021; Schneider Electric SCADAPack RemoteConnect™ for x70 R2.7.3
Action
Version 15.1 of EcoStruxure™ Control Expert includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_V15.1/ Customers using Unity Pro should strongly consider migrating to EcoStruxure™ Control Expert. If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: To mitigate the risks associated to Modbus weaknesses, users should immediately: • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 9 Mar 2022 · Last source change 3 Aug 2024, 04:07 UTC · CWE-754 · Improper Check for Unusual or Exceptional Conditions

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-29221
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2022-29221↗Vendor CSAF · Schneider Electric CPCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-24323 · cve.blacktree.nl