---
title: CSSM_TP_CERTVERIFY_UNKNOWN_CRITICAL_EXT
framework: security
role: symbol
role_heading: Global Variable
path: security/cssm_tp_certverify_unknown_critical_ext
---

# CSSM_TP_CERTVERIFY_UNKNOWN_CRITICAL_EXT

## Declaration

```swift
var CSSM_TP_CERTVERIFY_UNKNOWN_CRITICAL_EXT: Int { get }
```