CVE-2026-2399: Path Traversal

Q: What is the severity of CVE-2026-2399?

CVE-2026-2399 has a critical severity rating due to its potential to overwrite critical files.

Q: How do I fix CVE-2026-2399?

To fix CVE-2026-2399, ensure you upgrade to a patched version of Schneider Electric's PowerChute Serial Shutdown above version 1.5.

Q: Who is affected by CVE-2026-2399?

CVE-2026-2399 affects users of Schneider Electric's PowerChute Serial Shutdown software versions up to 1.5.

Q: What type of vulnerability is CVE-2026-2399?

CVE-2026-2399 is a Path Traversal vulnerability that improperly limits pathname access.

Q: What can happen if CVE-2026-2399 is exploited?

If exploited, CVE-2026-2399 can lead to critical files being overwritten with unintended text data.

Published Apr 14, 2026

Updated

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 Software

1 affected component

Schneider-electric Powerchute Serial Shutdown<1.5

Event History

Apr 14, 2026

CVE Published

via MITRE·03:09 PM

Data Sourced

via MITRE·03:09 PM

DescriptionWeakness

Data Sourced

via NVD·04:16 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2026-2399?

CVE-2026-2399 has a critical severity rating due to its potential to overwrite critical files.

How do I fix CVE-2026-2399?

To fix CVE-2026-2399, ensure you upgrade to a patched version of Schneider Electric's PowerChute Serial Shutdown above version 1.5.

Who is affected by CVE-2026-2399?

CVE-2026-2399 affects users of Schneider Electric's PowerChute Serial Shutdown software versions up to 1.5.

What type of vulnerability is CVE-2026-2399?

CVE-2026-2399 is a Path Traversal vulnerability that improperly limits pathname access.

What can happen if CVE-2026-2399 is exploited?

If exploited, CVE-2026-2399 can lead to critical files being overwritten with unintended text data.

Company

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Contact

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