High severity7.8NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026

CVE-2021-30748

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. An application may be able to execute arbitrary code with kernel privileges.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Apple Inc./macOS Big Surllm-fuzzy
Range: before 11.5
Apple Inc./iOSllm-fuzzy2 versions
before 14.7+ 1 more
- (no CPE)range: before 14.7
- (no CPE)range: unspecified
Apple Inc./macOSv5
Range: unspecified

Patches

Vulnerability mechanics

References

support.apple.com/en-us/HT212601nvdVendor Advisory
support.apple.com/en-us/HT212602nvdVendor Advisory
support.apple.com/kb/HT212604nvdVendor Advisory

News mentions

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