What is the severity of CVE-2021-30189?

CVE-2021-30189 has a high severity due to its stack-based buffer overflow vulnerability.

How do I fix CVE-2021-30189?

To mitigate CVE-2021-30189, upgrade the CODESYS V2 Web-Server to version 1.1.9.20 or newer.

What kind of vulnerability is CVE-2021-30189?

CVE-2021-30189 is classified as a stack-based buffer overflow vulnerability.

What software is affected by CVE-2021-30189?

CVE-2021-30189 affects CODESYS V2 Web-Server versions prior to 1.1.9.20.

Can CVE-2021-30189 lead to remote code execution?

Yes, CVE-2021-30189 can potentially allow remote code execution due to the nature of the buffer overflow.

Vulnerability/
CVE-2021-30189

critical

9.8

CWE

787 119

25/5/2021

3/8/2024

CVE-2021-30189: Buffer Overflow

First published: Tue May 25 2021(Updated: )

CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Codesys V2 Web Server	<1.1.9.20

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-30189?
CVE-2021-30189 has a high severity due to its stack-based buffer overflow vulnerability.
How do I fix CVE-2021-30189?
To mitigate CVE-2021-30189, upgrade the CODESYS V2 Web-Server to version 1.1.9.20 or newer.
What kind of vulnerability is CVE-2021-30189?
CVE-2021-30189 is classified as a stack-based buffer overflow vulnerability.
What software is affected by CVE-2021-30189?
CVE-2021-30189 affects CODESYS V2 Web-Server versions prior to 1.1.9.20.
Can CVE-2021-30189 lead to remote code execution?
Yes, CVE-2021-30189 can potentially allow remote code execution due to the nature of the buffer overflow.

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Frequently Asked Questions

What is the severity of CVE-2021-30189?
CVE-2021-30189 has a high severity due to its stack-based buffer overflow vulnerability.
How do I fix CVE-2021-30189?
To mitigate CVE-2021-30189, upgrade the CODESYS V2 Web-Server to version 1.1.9.20 or newer.
What kind of vulnerability is CVE-2021-30189?
CVE-2021-30189 is classified as a stack-based buffer overflow vulnerability.
What software is affected by CVE-2021-30189?
CVE-2021-30189 affects CODESYS V2 Web-Server versions prior to 1.1.9.20.
Can CVE-2021-30189 lead to remote code execution?
Yes, CVE-2021-30189 can potentially allow remote code execution due to the nature of the buffer overflow.