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

CVE-2021-1839

CVE-2021-1839

Description

The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.

AI Insight

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

Affected products

46
  • Apple Inc./macOS Big Surllm-fuzzy
    Range: = 11.3
  • Apple Inc./macOS Catalinallm-create
    Range: = Security Update 2021-002
  • Apple Inc./macOS Mojavellm-create
    Range: = Security Update 2021-003
  • Apple Inc./Mac OS X41 versions
    cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:*+ 40 more
    • cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.0:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.1:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.2:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.3:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.4:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.4:beta4:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.5:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-001:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:*
    • cpe:2.3:o:apple:mac_os_x: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:*:*:*:*:*:*
    • 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:*:*:*:*:*:*
  • Apple Inc./macOS2 versions
    cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0,<11.3
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

3

News mentions

0

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