What’s Vulnerable › Vulnerabilities

CVE-2021-22781

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-14 · updated 2026-06-17
• Weakness: CWE-522

Description

Insufficiently Protected Credentials vulnerability exists in EcoStruxure Control Expert (all versions prior to V15.0 SP1, including all versions of Unity Pro), EcoStruxure Process Expert (all versions, including all versions of EcoStruxure Hybrid DCS), and SCADAPack RemoteConnect for x70, all versions, that could cause a leak of SMTP credential used for mailbox authentication when an attacker can access a project file.

Affected products

• Schneider Electric EcoStruxure Control Expert: before 15.0; 15.0 — fixed in 15.0
• Schneider Electric EcoStruxure Process Expert: all versions
• Schneider Electric RemoteConnect: all versions

How to fix

Upgrade to a fixed version: Schneider Electric EcoStruxure Control Expert 15.0. Check the vendor advisory for mitigations.

References

• http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-01
• http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-01

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