CVE-2025-41701

User-context command execution via crafted SUO settings

Published Sep 9, 2025 · Updated Sep 9, 2025

Deserialization of untrusted data in Beckhoff TwinCAT 3 Engineering before 3.1.4024.67 allows attackers to execute commands via project files. Crafted Solution User Options (.suo) settings are loaded with a project and interpreted so that attacker-selected commands execute. Exploitation requires a local user to open the manipulated project, and commands then run with that user's privileges.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Beckhoff TwinCAT 3 Engineering before 3.1.4024.67 allows attackers to execute commands via project files. Crafted Solution User Options (.suo) settings are loaded with a project and interpreted so that attacker-selected commands execute. Exploitation requires a local user to open the manipulated project, and commands then run with that user's privileges.

The record

CVE
CVE-2025-41701
Published
Sep 9, 2025
Updated
Sep 9, 2025
Vendor
Beckhoff Automation
Product
TwinCAT 3 Engineering
Classifications
CWE-502, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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 <3.1.4024.67

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Beckhoff Automation · TwinCAT 3 Engineeringversion=0 <3.1.4024.67

Published CVSS scores

7.8CERT@VDECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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