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CVE-2021-30195

Published: May 25, 2021Updated: Aug 15, 2025 Sources: CVE List NVD BDU csafCWE-125
NVD MITRE
7.5CVSSHIGH
EPSS Score
7.2%
Top 6.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
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

n/an/a
CODESYSCODESYS GmbHICS / OT / IoT
750-893 firmwarewagoICS / OT / IoT
750-891 firmwarewagoICS / OT / IoT
750-890 firmwarewagoICS / OT / IoT
codesys gmbhcommercialDEICS / OT / IoTaka codesys
wagocommercialDEICS / OT / IoT
and 26 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://customers.codesys.com/index.php
customers.codesys.com
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14725&token=08691519ef764b252630759eff925890176ecd78&download=
customers.codesys.com
https://xakep.ru/2021/06/04/codesys-flaws/
xakep.ru
and 229 more references View all →

Timeline

Published
May 25, 2021
Last Updated
Aug 15, 2025

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