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 | < 10.0.17763.2565 |
| macOS | Apple | SA8650P |
| macOS | Apple | SA8770P |
| macOS | Apple | QCS8250 |
| macOS | Apple | n/a |