A logic issue was addressed with improved state management. This issue is fixed in iOS 13. Visiting a malicious website may lead to address bar spoofing.

A logic issue existed with the display of notification previews. This issue was addressed with improved validation. This issue is fixed in iOS 13. Notification previews may show on Bluetooth accessories even when previews are disabled.

An authentication issue was addressed with improved state management. This issue is fixed in tvOS 13. A local user may be able to leak sensitive user information.

A logic issue was addressed with improved state management. This issue is fixed in iOS 13, Safari 13. Processing maliciously crafted web content may lead to universal cross site scripting.

A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.

Inappropriate implementation in Omnibox in Google Chrome on iOS prior to 77.0.3865.75 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.