Skip to main content

Codesys EUVDEUVD-2025-199974

| CVE-2025-41700 HIGH
Deserialization of Untrusted Data (CWE-502)
2025-12-01 info@cert.vde.com
7.8
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Analysis Updated
Apr 16, 2026 - 06:25 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
3.5.21.40
EUVD ID Assigned
Mar 15, 2026 - 13:34 euvd
EUVD-2025-199974
Analysis Generated
Mar 15, 2026 - 13:34 vuln.today
CVE Published
Dec 01, 2025 - 10:16 nvd
HIGH 7.8

DescriptionCVE.org

An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

Analysis

An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

Technical ContextAI

Insecure deserialization occurs when untrusted data is used to reconstruct objects, allowing attackers to manipulate serialized data to execute arbitrary code. This vulnerability is classified as Deserialization of Untrusted Data (CWE-502).

RemediationAI

Avoid deserializing untrusted data. Use safe serialization formats (JSON instead of native serialization). Implement integrity checks on serialized data.

CVE-2020-10245 CRITICAL POC
9.8 Mar 26

CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow. Rated critica

CVE-2019-18858 CRITICAL POC
9.8 Nov 20

CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow. Rated

CVE-2021-34584 CRITICAL POC
9.1 Oct 26

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service con

CVE-2020-6081 HIGH POC
8.8 May 07

An exploitable code execution vulnerability exists in the PLC_Task functionality of 3S-Smart Software Solutions GmbH COD

CVE-2021-21869 HIGH POC
7.8 Aug 25

An unsafe deserialization vulnerability exists in the Engine.plugin ProfileInformation ProfileData functionality of CODE

CVE-2021-21868 HIGH POC
7.8 Aug 18

An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.get_MissingTypes() functionality of C

CVE-2021-21867 HIGH POC
7.8 Aug 18

An unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality o

CVE-2021-21866 HIGH POC
7.8 Aug 02

A unsafe deserialization vulnerability exists in the ObjectManager.plugin ProfileInformation.ProfileData functionality o

CVE-2021-21864 HIGH POC
7.8 Aug 02

A unsafe deserialization vulnerability exists in the ComponentModel ComponentManager.StartupCultureSettings functionalit

CVE-2021-29240 HIGH POC
7.8 May 04

The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before insta

CVE-2021-34593 HIGH POC
7.5 Oct 26

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid reque

CVE-2021-34586 HIGH POC
7.5 Oct 26

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the

Share

EUVD-2025-199974 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy