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Rewterz Threat Advisory – ICS: Schneider Electric SESU Vulnerability

Severity

High

Analysis Summary

CVE-2021-22799

An insufficient entropy vulnerability exists, which could cause unintended connection from an internal network to an external network when an attacker manages to decrypt the SESU proxy password from the registry.

Impact

  • Information Disclosure

Affected Vendors

  • Schneider Electric

Affected Products

  • Schneider Electric Software Update: v2.3.0 through v2.5.1

Remediation

Refer to CISA Advisory for the patch, upgrade, or suggested workaround information.

https://us-cert.cisa.gov/ics/advisories/icsa-21-336-01

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