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

CVE-2021-30789

CVE-2021-30789

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. 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

20
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <14.7
  • 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,<=10.15.6
    • 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:*:*:*:*:*:*
    • 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_2020-005:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
    • 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:supplemental_update:*:*:*:*:*:*
  • Apple Inc./macOS3 versions
    cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: <11.5
    • (no CPE)range: unspecified
    • (no CPE)range: 11.5
  • Apple Inc./tvOS
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
    Range: <14.7
  • Apple Inc./watchOS2 versions
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <7.6
    • (no CPE)range: 7.6
  • Apple Inc./iOScpe-rescue2 versions
    unspecified+ 1 more
    • (no CPE)range: unspecified
    • (no CPE)range: 14.7
  • Apple Inc./Security Update 2021-008 Catalinacpe-rescue
    Range: unspecified

Patches

Vulnerability mechanics

References

5

News mentions

0

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