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High severity7.5NVD Advisory· Published Dec 8, 2020· Updated Jun 17, 2026

CVE-2020-9991

CVE-2020-9991

Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, iCloud for Windows 7.21, tvOS 14.0. A remote attacker may be able to cause a denial of service.

AI Insight

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

Affected products

16
  • Apple Inc./iOS and iPadOScpe-rescue
    Range: unspecified
  • Apple Inc./iCloud
    cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
    Range: <7.21
  • Apple Inc./Ipados2 versions
    cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <14.0
    • (no CPE)range: = 14.0
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <14.0
  • Apple Inc./Mac OS X
    cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
    Range: <11.0.1
  • Apple Inc./tvOS2 versions
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <14.0
    • (no CPE)range: unspecified
  • Apple Inc./watchOS3 versions
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <7.0
    • (no CPE)range: unspecified
    • (no CPE)range: = 7.0
  • Apple Inc./iCloud for Windowscpe-rescue2 versions
    unspecified+ 1 more
    • (no CPE)range: unspecified
    • (no CPE)range: = 7.21
  • Apple Inc./macOSv52 versions
    unspecified+ 1 more
    • (no CPE)range: unspecified
    • (no CPE)range: = 11.0.1
  • Apple Inc./iOSllm-fuzzy
    Range: = 14.0

Patches

Vulnerability mechanics

References

8

News mentions

0

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