CVE-2021-22781: Schneider Electric Ecostruxure Control Expert

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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 (fixed in 15.0); version 15.0 only
• Schneider Electric Ecostruxure Process Expert: any version
• Schneider Electric Remoteconnect: any version

Published 2021-07-14. Last modified 2026-06-17.