CVE-2021-27432
First published: Thu May 20 2021(Updated: )
OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Opcfoundation Ua-.net-legacy | ||
| Opcfoundation Ua .net Standard Stack | <1.4.365.48 | |
| OPC Foundation OPC UA .NET Standard: versions prior to 1.4.365.48 | ||
| OPC Foundation OPC UA .NET Legacy |
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Reference Links
Frequently Asked Questions
What is CVE-2021-27432?
CVE-2021-27432 is a vulnerability in OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy that allows an attacker to trigger a stack overflow through uncontrolled recursion.
How severe is CVE-2021-27432?
CVE-2021-27432 has a severity rating of 7.5 (high).
What is the affected software?
The affected software includes OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy.
What is the Common Weakness Enumeration (CWE) ID for CVE-2021-27432?
The CWE ID for CVE-2021-27432 is 674.
Where can I find more information about CVE-2021-27432?
More information about CVE-2021-27432 can be found at this reference: https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03
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