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High severity7.8CISA KEVNVD Advisory· Published Aug 24, 2021· Updated Jun 17, 2026

CVE-2021-30883

CVE-2021-30883

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

AI Insight

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

Affected products

11
  • Apple Inc./Ipados2 versions
    cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <14.8.1
    • (no CPE)range: iPadOS 14.8.1, iPadOS 15.0.2
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <14.8.1
  • Apple Inc./macOS4 versions
    cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0,<11.6.1
    • cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:*
    • (no CPE)range: macOS Big Sur 11.6.1, macOS Monterey 12.0.1
    • (no CPE)range: unspecified
  • Apple Inc./tvOS
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
    Range: <15.1
  • Apple Inc./watchOS
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
    Range: <8.1
  • Apple Inc./iOSllm-fuzzy
    Range: iOS 14.8.1, iOS 15.0.2
  • Apple Inc./iOS and iPadOScpe-rescue
    Range: unspecified

Patches

Vulnerability mechanics

References

7

News mentions

0

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