A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on arbitrary servers.
| Product | Vendor | Version |
|---|---|---|
| iOS and iPadOS | Apple | < 16.1.3 |
| macOS | Apple | < 16.3.5 |
| macOS | Apple | < 16.6.1 |
| macOS | Apple | < 16.6.2 |
| macOS | Apple | < 16.6.1 |