A logic issue was addressed with improved state management. This issue is fixed in watchOS 6.1. Processing maliciously crafted web content may lead to universal cross site scripting.

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in watchOS 6.1, iCloud for Windows 11.0. Multiple issues in libxslt.

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in watchOS 6.1. An application may be able to execute arbitrary code with kernel privileges.

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in watchOS 6.1. Processing maliciously crafted web content may lead to arbitrary code execution.

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.