CVE-2025-11566: Schneider Electric Powerchute Serial Shutdown

Medium severity, CVSS 6.9. EPSS: 0.5% chance of exploitation in the next 30 days.

CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that would allow an attacker on the local network to gain access to the user account by performing an arbitrary number of authentication attempts with different credentials on the /REST/shutdownnow endpoint.

Affected products

• Schneider Electric Powerchute Serial Shutdown: up to and including v1.3

Published 2025-11-12. Last modified 2026-06-17.