CVE-2021-27432
HIGH
7.5
CVSS Score
Published: May 20, 2021 at 03:20 PM UTC
Updated: June 17, 2026 at 03:44 AM UTC
2 products affected across 1 vendorUa .net Standard StackUa .net Legacy
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.4.365.48
Affected range stops below 1.4.365.48, so it looks safe — our inference, not a vendor statement
v < 1.4.365.48
Affected range stops below 1.4.365.48, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-674
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