7.5
CWE
120
Advisory Published
Updated

CVE-2021-30191

First published: Tue May 25 2021(Updated: )

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Codesys V2 Web Server<1.1.9.20

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Frequently Asked Questions

  • What is the severity of CVE-2021-30191?

    CVE-2021-30191 is classified as a medium severity vulnerability due to potential buffer overflow risks.

  • How do I fix CVE-2021-30191?

    To remediate CVE-2021-30191, update the CODESYS V2 Web-Server to version 1.1.9.20 or later.

  • What impact does CVE-2021-30191 have on systems?

    CVE-2021-30191 can lead to potential arbitrary code execution if exploited by an attacker.

  • Is CVE-2021-30191 remotely exploitable?

    Yes, CVE-2021-30191 can be exploited remotely if the vulnerable web server is exposed.

  • What software versions are affected by CVE-2021-30191?

    CVE-2021-30191 affects all versions of CODESYS V2 Web-Server prior to 1.1.9.20.

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