Critical severity9.8NVD Advisory· Published Sep 8, 2021· Updated Jun 17, 2026
CVE-2021-30678
CVE-2021-30678
Description
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- Range: = Security Update 2021-004
- Range: = Security Update 2021-003
- Range: = 11.4
- Range: unspecified
Patches
Vulnerability mechanics
References
3- support.apple.com/en-us/HT212529nvdVendor Advisory
- support.apple.com/en-us/HT212530nvdVendor Advisory
- support.apple.com/en-us/HT212531nvdVendor Advisory
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