CVE-2021-30186: Buffer Overflow
First published: Tue May 25 2021(Updated: )
CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CODESYS PLCWinNT | <2.4.7.55 | |
| Codesys Runtime Toolkit | <2.4.7.55 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-30186?
CVE-2021-30186 is a vulnerability in the CODESYS V2 runtime system SP before 2.4.7.55 that allows for a heap-based buffer overflow.
What is the severity of CVE-2021-30186?
The severity of CVE-2021-30186 is high with a CVSS score of 7.5.
Which software versions are affected by CVE-2021-30186?
CODESYS PLCWinNT versions up to and excluding 2.4.7.55 and Codesys Runtime Toolkit versions up to and excluding 2.4.7.55 are affected by CVE-2021-30186.
How can I fix CVE-2021-30186?
To fix CVE-2021-30186, it is recommended to upgrade the CODESYS V2 runtime system to version 2.4.7.55 or higher.
What are the Common Weakness Enumeration (CWE) IDs associated with CVE-2021-30186?
The CWE IDs associated with CVE-2021-30186 are CWE-119 and CWE-787.
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