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Apple is aware of a report that this issue may have been actively exploited..","A use after free issue was addressed with improved memory management. 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At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","Stable","Variant","Simple",1,{"shortDescription":43,"requiredAction":43,"vulnerabilityName":43,"dateAdded":27},[],{"title":124,"metaDescription":125,"keywords":126,"canonicalUrl":127,"structuredData":128},"What is CVE-2021-30661? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-30661, a high severity cyber security vulnerability from 2021. 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