CVE-2026-2399: Schneider Electric Powerchute Serial Shutdown

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists that could cause critical files overwritten with text data when a Web Admin user alters the POST /REST/upssleep request payload.

Affected products

• Schneider Electric Powerchute Serial Shutdown: before 1.5 (fixed in 1.5)

Published 2026-04-14. Last modified 2026-06-17.