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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Safari | Apple | * | 14.0.3 (excluding) |
| Ipad_os | Apple | * | 14.4 (excluding) |
| Iphone_os | Apple | * | 14.4 (excluding) |
| Macos | Apple | 11.0.1 (including) | 11.2 (excluding) |
| Tvos | Apple | * | 14.4 (excluding) |
| Watchos | Apple | * | 7.3 (excluding) |