CVE-2021-33485 : What You Need to Know

CODESYS Control Runtime system before version 3.5.17.10 is impacted by a Heap-based Buffer Overflow vulnerability.

Understanding CVE-2021-33485

This CVE affects the CODESYS Control Runtime system due to a specific vulnerability.

What is CVE-2021-33485?

CVE-2021-33485 refers to a Heap-based Buffer Overflow vulnerability in CODESYS Control Runtime system prior to version 3.5.17.10.

The Impact of CVE-2021-33485

Exploitation of this vulnerability could lead to unauthorized access, denial of service, or arbitrary code execution on affected systems.

Technical Details of CVE-2021-33485

This section provides more detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in CODESYS Control Runtime system before 3.5.17.10 allows attackers to trigger a Heap-based Buffer Overflow.

Affected Systems and Versions

All versions of the CODESYS Control Runtime system before 3.5.17.10 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting specific inputs that trigger the Heap-based Buffer Overflow condition.

Mitigation and Prevention

It is essential to take immediate steps to mitigate the risks posed by CVE-2021-33485.

Immediate Steps to Take

Users are advised to update the CODESYS Control Runtime system to version 3.5.17.10 or later to address this vulnerability.

Long-Term Security Practices

Implementing strong access controls, network segmentation, and regular security updates can help prevent future vulnerabilities.

Patching and Updates

Regularly check for security updates and patches released by the vendor to stay protected against potential threats.