Schneider Electric EcoStruxure Control Expert Modbus Communication authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Schneider Electric EcoStruxure Control Expert, EcoStruxure Process Expert, SCADAPack RemoteConnect for x70, Modicon M580 CPU and Modicon M340 CPU. The impacted element is an unknown function of the component Modbus Communication Handler. The manipulation results in authentication spoofing. This vulnerability is known as CVE-2021-22779. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Schneider Electric EcoStruxure Control Expert, EcoStruxure Process Expert, SCADAPack RemoteConnect for x70, Modicon M580 CPU and Modicon M340 CPU (SCADA Software). Affected is an unknown code block of the component Modbus Communication Handler. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 07/15/2021 as SEVD-2021-194. The advisory is shared for download at download.schneider-electric.com. This vulnerability is traded as CVE-2021-22779. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

ADP CISA Base Score: 6.5
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2021 🔍
07/15/2021 +189 days 🔍
07/15/2021 +0 days 🔍
05/30/2026 +1780 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2021-194
Status: Confirmed

CVE: CVE-2021-22779 (🔍)
GCVE (CVE): GCVE-0-2021-22779
GCVE (VulDB): GCVE-100-178680

Entryinfo

Created: 07/15/2021 08:38
Updated: 05/30/2026 20:42
Changes: 07/15/2021 08:38 (37), 07/15/2021 08:39 (1), 07/18/2021 16:08 (2), 05/30/2026 20:42 (42)
Complete: 🔍
Cache ID: 216::103

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