CRITICAL · 9.8

CVE-2021-33485

CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.

Vulnerability Description

CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
CodesysControl< 4.2.0.0
CodesysControl Rte< 3.5.17.10
CodesysControl Runtime System Toolkit< 3.5.17.10
CodesysControl Win Sl< 3.5.17.10
CodesysEmbedded Target Visu Toolkit< 3.5.17.10
CodesysHmi< 3.5.17.10
CodesysRemote Target Visu Toolkit< 3.5.17.10

Related Weaknesses (CWE)

References

FAQ

What is CVE-2021-33485?

CVE-2021-33485 is a vulnerability with a CVSS score of 9.8 (CRITICAL). CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.

How severe is CVE-2021-33485?

CVE-2021-33485 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-33485?

Check the references section above for vendor advisories and patch information. Affected products include: Codesys Control, Codesys Control Rte, Codesys Control Runtime System Toolkit, Codesys Control Win Sl, Codesys Embedded Target Visu Toolkit.