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CVE-2021-22797

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 26.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-13 · updated 2026-06-17
• Weakness: CWE-22

Description

A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal) vulnerability exists that could cause malicious script to be deployed in an unauthorized location and may result in code execution on the engineering workstation when a malicious project file is loaded in the engineering software. Affected Product: EcoStruxure Control Expert (V15.0 SP1 and prior, including former Unity Pro), EcoStruxure Process Expert (2020 and prior, including former HDCS), SCADAPack RemoteConnect for x70 (All versions)

Affected products

• Schneider Electric EcoStruxure Control Expert: before 15.1 — fixed in 15.1
• Schneider Electric EcoStruxure Process Expert: before 2021 — fixed in 2021
• Schneider Electric RemoteConnect: all versions

How to fix

Upgrade to a fixed version: Schneider Electric EcoStruxure Control Expert 15.1; Schneider Electric EcoStruxure Process Expert 2021. Check the vendor advisory for mitigations.

References

• https://www.se.com/ww/en/download/document/SEVD-2021-257-01/
• https://www.se.com/ww/en/download/document/SEVD-2021-257-01/

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