An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1. Processing a maliciously crafted font may lead to arbitrary code execution.
[
{
"vendor": "Apple",
"product": "macOS",
"versions": [
{
"version": "unspecified",
"status": "affected",
"lessThan": "11.0",
"versionType": "custom"
}
]
}
]