High severity7.1NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026
CVE-2021-30719
CVE-2021-30719
Description
A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12unspecified+ 2 more
- (no CPE)range: unspecified
- (no CPE)range: Big Sur <11.4, Security Update 2021-003 Catalina
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=11.0,<11.4
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*+ 8 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:supplemental_update:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- support.apple.com/en-us/HT212529nvdRelease NotesVendor Advisory
- support.apple.com/en-us/HT212530nvdRelease NotesVendor Advisory
News mentions
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