Medium severity6.5NVD Advisory· Published Oct 28, 2021· Updated Jun 17, 2026
CVE-2021-1821
CVE-2021-1821
Description
A logic issue was addressed with improved state management. This issue is fixed in watchOS 7.6, macOS Big Sur 11.5. Visiting a maliciously crafted webpage may lead to a system denial of service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: = 11.5
- Range: = 7.6
- Range: unspecified
Patches
Vulnerability mechanics
References
2- support.apple.com/en-us/HT212602nvdVendor Advisory
- support.apple.com/en-us/HT212605nvdVendor Advisory
News mentions
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