Is CVE-2026-2399 actively exploited?

CVE-2026-2399 has no public evidence of in-the-wild exploitation as of 2026-04-22.

What is the CVSS score for CVE-2026-2399?

CVE-2026-2399 has a CVSS score of 6.9 (MEDIUM severity). Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-2399?

Patch guidance is available from schneider-electric security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-2399.

Which products are affected by CVE-2026-2399?

1 product: schneider-electric powerchute serial shutdown.

CVE-2026-2399 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: adjacent
Complexity: low
Privileges: high
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-22 · Path Traversal

Metadata

Primary Vendor: SCHNEIDER-ELECTRIC
Published: 4/14/2026
Last Modified: 4/22/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-2399

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary