CVE-2025-41726Network attack vector

Privileged code execution via API integer overflow

Published Jan 27, 2026 · Updated Jan 27, 2026

Integer overflow in Beckhoff Device Manager before 2.5.3 and related MDP packages allows remote authenticated users to execute code. Crafted web-service or local API calls trigger integer overflows in Device Manager processing; Beckhoff has not disclosed the affected function or arithmetic operation. Low-privileged authentication is required for the network path, and successful exploitation runs attacker-controlled code inside a privileged process.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Beckhoff Device Manager before 2.5.3 and related MDP packages allows remote authenticated users to execute code. Crafted web-service or local API calls trigger integer overflows in Device Manager processing; Beckhoff has not disclosed the affected function or arithmetic operation. Low-privileged authentication is required for the network path, and successful exploitation runs attacker-controlled code inside a privileged process.

The record

CVE
CVE-2025-41726
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
Beckhoff Automation
Product
Beckhoff Device Manager
Classifications
CWE-190, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2026Record 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=0.0.0 <2.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beckhoff Automation · Beckhoff Device Managerversion=0.0.0 <2.5.3
Beckhoff Automation · MDP software package for TwinCAT/BSDversion=0.0.0 <1.7.0.0
Beckhoff Automation · MDP for Beckhoff RT Linuxversion=0.0.0 <0.0.5

Published CVSS scores

8.8CERT@VDECVSS:3.1/AV:N/AC:L/PR:L/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1068Exploitation for Privilege Escalation

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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