CVE-2026-2405

Schneider Electric Microsoft Windows — vulnerability CVE-2026-2405

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.

CVSS 6.5Patch available

This record: live connection— last retrieved: 7 November 2026 at 18:56.

Vendor

Schneider Electric

Products

Microsoft Windows, Red Hat Enterprise Linux, SuSE Linux

up to version vers:intdot/<=1.4

Published

14 April 2026

Last modified

26 October 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

CVSS 3.1 — vector details

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack vector

NETWORK

Privileges required

LOW

User interaction

NONE

Confidentiality

None

Integrity

None

Availability

High

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.2%

Percentile

16e

Source: FIRST.org, updated on 6 November 2026.

Patch information

Version v1.5 of PowerChute™ Serial Shutdown includes a fix for this vulnerability and is available for download here: • Windows: https://www.se.com/ww/en/download/document/SPD-PCSS_WIN_EN/ Specific instructions and hardening guidelines for these mitigations can be found in the [Security Handbook](https://download.schneider-electric.com/files?p_Doc_Ref=SPD_CCON-PCSSSH_EN).

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

42/ 100

Based on CVSS 6.5, EPSS 0.2%, industrial relevance 55/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Network access to the affected device or segment is required.
•Limited user privileges are required.
•No user interaction required.

Operational impact & energy relevance

Possible loss of visibility of or control over the process upon successful exploitation.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Vendor "Schneider Electric" is a known supplier of equipment for the energy sector.

Recommended defensive measures

•Test failover and recovery procedures in case the system fails.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

55/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Vendor "Schneider Electric" is a known supplier of equipment for the energy sector.

Classification is provisional; manual verification by an OT security analyst is recommended.

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.

IEC 62443 mapping

IEC 62443-3-3FR7 · Beschikbaarheid van middelen

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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