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TI-2021-11195 Aliases CVE-2021-30821GHSA-m4jj-5845-6577

Apple macOS: A malicious application may be able to execute arbitrary code with kernel…

Priority LOW 36Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

Why it matters now

EPSS 0.01072 65th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 12.0, 2021, 11.6

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApplemacOSbefore 12.012.0Patch availableCNA
ApplemacOSbefore 20212021Patch availableCNA
ApplemacOSbefore 11.611.6Patch availableCNA
  • macOS VendorApple Affected before 12.0 Fixed in 12.0 Patch available CNA
  • macOS VendorApple Affected before 2021 Fixed in 2021 Patch available CNA
  • macOS VendorApple Affected before 11.6 Fixed in 11.6 Patch available CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*before 10.15.7VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*10.15.7VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*10.15.7 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*10.15.7 security_update_2021-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*10.15.7 security_update_2021-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*10.15.7 security_update_2021-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*10.15.7 security_update_2021-004VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*10.15.7 security_update_2021-005VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*10.15.7 security_update_2021-006VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*10.15.7 supplemental_updateVulnerableApple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.15.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* Versions 10.15.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* Versions 10.15.7 security_update_2020-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* Versions 10.15.7 security_update_2021-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* Versions 10.15.7 security_update_2021-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* Versions 10.15.7 security_update_2021-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:* Versions 10.15.7 security_update_2021-004 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:* Versions 10.15.7 security_update_2021-005 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:* Versions 10.15.7 security_update_2021-006 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:* Versions 10.15.7 supplemental_update Vulnerable ·Apple
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*11.0 to before 11.6.1; 12.0.0 to before 12.0.1VulnerableApple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.6.1; 12.0.0 to before 12.0.1 Vulnerable ·Apple

Remediation

  • Fix · CNA macOS (Apple) Fixed in 12.0
  • Fix · CNA macOS (Apple) Fixed in 2021
  • Fix · CNA macOS (Apple) Fixed in 11.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple macOS 12.0

    5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2021-11206 Apple macOS: Unpacking a maliciously crafted archive may allow an attacker to write…Priority MEDIUM 53
    • TI-2021-11197 Out-of-bounds write in Apple macOSPriority LOW 36
    • TI-2021-11196 Apple iOS and iPadOS: An attacker in a privileged network position may be able to bypass…Priority LOW 33
    Show all 5 records →
  • Release ·

    Apple macOS 11.6, 2021

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-30821
  2. 2026-10-03 Alias added: GHSA-m4jj-5845-6577

References

Advisory 3

  • TI-2021-01573 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-01572 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2012-01607 sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI… KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-02117 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3209 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences