CVE-2025-41724Network attack vector

Persistent service crash via incomplete SOAP requests

Published Oct 22, 2025 · Updated Oct 22, 2025

Failure to handle incomplete elements in SAUTER building controllers allows remote attackers to crash wscserver with incomplete SOAP requests. SOAP request handling in wscserver fails to reject incomplete input safely and instead terminates the service process. No authentication or user interaction is required, and the watchdog does not restart wscserver, leaving it unavailable until device reboot.

CVSS severity7.5
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Failure to handle incomplete elements in SAUTER building controllers allows remote attackers to crash wscserver with incomplete SOAP requests. SOAP request handling in wscserver fails to reject incomplete input safely and instead terminates the service process. No authentication or user interaction is required, and the watchdog does not restart wscserver, leaving it unavailable until device reboot.

The record

CVE
CVE-2025-41724
Published
Oct 22, 2025
Updated
Oct 22, 2025
Vendor
Fr. Sauter AG
Product
SAUTER EY-modulo 5 modu524
Classifications
CWE-239, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0 <Firmware v6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fr. Sauter AG · SAUTER EY-modulo 5 modu524version=0.0 <Firmware v6.0
Fr. Sauter AG · SAUTER EY-modulo 5 ecos504/505version=0.0 <Firmware v6.0
Fr. Sauter AG · SAUTER modulo 6 modu660-ASversion=0.0.0 <Firmware v3.2.0
Fr. Sauter AG · SAUTER modulo 6 modu612-LCversion=0.0.0 <Firmware v3.2.0
Fr. Sauter AG · SAUTER EY-modulo 5 modu525version=0.0 <Firmware v6.0
Fr. Sauter AG · SAUTER modulo 6 modu680-ASversion=0.0.0 <Firmware v3.2.0

Published CVSS scores

7.5CERT VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-239Failure to Handle Incomplete Element
T0814Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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