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High severity7.8NVD Advisory· Published Mar 18, 2022· Updated Jun 17, 2026

CVE-2021-30771

CVE-2021-30771

Description

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6, watchOS 7.5, tvOS 14.6. Processing a maliciously crafted font file may lead to arbitrary code execution.

AI Insight

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

Affected products

14
  • Apple Inc./macOSv53 versions
    unspecified+ 2 more
    • (no CPE)range: unspecified
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0,<11.4
    • (no CPE)range: 11.4
  • Apple Inc./tvOSv53 versions
    unspecified+ 2 more
    • (no CPE)range: unspecified
    • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <14.6
    • (no CPE)range: 14.6
  • Apple Inc./watchOSv53 versions
    unspecified+ 2 more
    • (no CPE)range: unspecified
    • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <7.5
    • (no CPE)range: 7.5
  • 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./iOSllm-fuzzy
    Range: 14.6

Patches

Vulnerability mechanics

References

4

News mentions

0

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