A use-after-free crash could have occurred on macOS if a Firefox update were being applied on a very busy system. This could have resulted in an exploitable crash. This vulnerability affects Firefox < 122.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "122",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]