Path Traversal in Schneider Electric Powerchute™ Serial Shutdown
CVE-2026-2399
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.002 (10.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Schneider Electric Powerchute™ Serial Shutdown — versions Versions 1.4 and prior
- Schneider-electric Powerchute_serial_shutdown
Weakness classification (CWE)
References
- cybersecurity@se.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-2399?
- CVE-2026-2399 is a medium-severity vulnerability in Schneider Electric Powerchute™ Serial Shutdown, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-04-14.
- How severe is CVE-2026-2399?
- Medium severity. CVSS v3 base score is 6.1 out of 10.