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

CVE-2021-30916

CVE-2021-30916

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious 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

23
  • Apple Inc./macOSv54 versions
    unspecified+ 3 more
    • (no CPE)range: unspecified
    • 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, Security Update 2021-007 Catalina
  • Apple Inc./iOS and iPadOScpe-rescue
    Range: unspecified
  • Apple Inc./Ipados3 versions
    cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:*range: <14.8.1
    • cpe:2.3:o:apple:ipados:15.0:*:*:*:*:*:*:*
    • (no CPE)range: iPadOS 14.8.1, iPadOS 15.1
  • Apple Inc./Iphone OS2 versions
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*range: <14.8.1
    • cpe:2.3:o:apple:iphone_os:15.0:*:*:*:*:*:*:*
  • Apple Inc./Mac OS X10 versions
    cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*+ 9 more
    • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*range: <10.15.7
    • cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
  • Apple Inc./tvOS
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
    Range: <15.2
  • Apple Inc./watchOS
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
    Range: <8.3
  • Apple Inc./iOSllm-fuzzy
    Range: iOS 14.8.1, iOS 15.1

Patches

Vulnerability mechanics

References

9

News mentions

0

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