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

CVE-2021-30736

CVE-2021-30736

Description

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. 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

12
  • Apple Inc./macOSv53 versions
    unspecified+ 2 more
    • (no CPE)range: unspecified
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0.1,<11.4
    • (no CPE)range: = 11.4
  • Apple Inc./iOS and iPadOScpe-rescue
    Range: unspecified
  • Apple Inc./Ipados2 versions
    cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <14.6
    • (no CPE)range: = 14.6
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <14.6
  • Apple Inc./tvOS2 versions
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <14.6
    • (no CPE)range: = 14.6
  • Apple Inc./watchOS2 versions
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <7.5
    • (no CPE)range: = 7.5
  • Apple Inc./iOSllm-fuzzy
    Range: = 14.6

Patches

Vulnerability mechanics

References

4

News mentions

0

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