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CVE-2025-41739

CODESYS Control - Linux/QNX SysSocket flaw

Published: Dec 1, 2025Updated: Dec 1, 2025 Sources: CVE List NVD BDUCWE-125
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.3%
Top 79.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication servers of the CODESYS Control runtime system on Linux and QNX to trigger an out-of-bounds read via crafted socket communication, potentially causing a denial of service.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

CODESYS Control for BeagleBone SLCODESYS GmbHICS / OT / IoT
CODESYS Control for emPC-A/iMX6 SLCODESYS GmbHICS / OT / IoT
CODESYS Control for IOT2000 SLCODESYS GmbHICS / OT / IoT
CODESYS Control for Linux ARM SLCODESYS GmbHICS / OT / IoT
CODESYS Control for Linux SLCODESYS GmbHICS / OT / IoT
codesys gmbhcommercialDEICS / OT / IoTaka codesys
and 27 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://certvde.com/de/advisories/VDE-2025-099
certvde.com
https://api-www.codesys.com/fileadmin/user_upload/CODESYS_Group/Ecosystem/Up-to-Date/Security/Security-Advisories/Advisory2025-09_CDS-94934.pdf
api-codesys.com
https://certvde.com/de/advisories/VDE-2025-099
certvde.com
and 1 more references View all →

Timeline

Published
Dec 1, 2025
Last Updated
Dec 1, 2025

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