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Medium severity5.5NVD Advisory· Published Aug 24, 2021· Updated Jun 17, 2026

CVE-2021-30855

CVE-2021-30855

Description

A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. An application may be able to access restricted files.

AI Insight

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

Affected products

19
  • Apple Inc./Ipados2 versions
    cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <14.8
    • (no CPE)range: 14.8, 15
  • Apple Inc./Iphone OS
    cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Range: <14.8
  • Apple Inc./Mac OS X8 versions
    cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*+ 7 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:supplemental_update:*:*:*:*:*:*
  • Apple Inc./macOS3 versions
    cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: <11.6
    • (no CPE)range: 11.6
    • (no CPE)range: unspecified
  • Apple Inc./tvOS
    cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
    Range: <15.0
  • Apple Inc./watchOS2 versions
    cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <8.0
    • (no CPE)range: 8
  • Apple Inc./macOS Catalinallm-create
    Range: Security Update 2021-005
  • Apple Inc./iOSllm-fuzzy
    Range: 14.8, 15

Patches

Vulnerability mechanics

References

6

News mentions

0

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