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

CVE-2021-30784

Description

Multiple issues were addressed with improved logic. This issue is fixed in macOS Big Sur 11.5. A local attacker may be able to execute code on the Apple T2 Security Chip.

AI Insight

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

Affected products

Apple Inc./macOS Big Surllm-fuzzy
Range: <11.5
Apple Inc./macOSv5
Range: unspecified

Patches

Vulnerability mechanics

References

support.apple.com/en-us/HT212602nvdRelease NotesVendor Advisory
support.apple.com/kb/HT212600nvdVendor Advisory
support.apple.com/kb/HT212603nvdVendor Advisory

News mentions

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