CVE-2026-2405 Denial of service in PowerChute™ Serial Shutdown

Medium 5.3 Published 14 Apr 2026 Updated 14 Apr 2026

An authenticated Web Admin user can cause denial of service by flooding the system with helpabout requests, triggering excessive zip file creation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-2405?

CVE-2026-2405 is a medium-severity denial of service vulnerability in Schneider Electric PowerChute™ Serial Shutdown, published on 14 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

CWE-400 Uncontrolled Resource Consumption vulnerability exists that could cause excessive troubleshooting zip file creation and denial of service when a Web Admin user floods the system with POST /helpabout requests.

Weakness: CWE-400

Which versions are affected by CVE-2026-2405?

It affects 1 product.

Products include Schneider-Electric Powerchute Serial Shutdown.

How do I fix CVE-2026-2405?

No fix has been published for CVE-2026-2405 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-2405 being exploited?

There is no known exploitation of CVE-2026-2405 in the wild and no public exploit code.

Sources

Also known as GHSA-2j49-hp6r-vx83.