A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
References
| Link | Resource |
|---|---|
| https://support.apple.com/en-us/HT212335 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212336 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212339 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212341 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212532 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212335 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212336 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212339 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212341 | Release Notes Vendor Advisory |
| https://support.apple.com/en-us/HT212532 | Release Notes Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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History
23 Oct 2025, 14:55
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| References | () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665 - Third Party Advisory, US Government Resource |
22 Oct 2025, 00:17
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21 Oct 2025, 20:18
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21 Oct 2025, 19:19
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Information
Published : 2021-09-08 15:15
Updated : 2025-10-23 14:55
NVD link : CVE-2021-30665
Mitre link : CVE-2021-30665
CVE.ORG link : CVE-2021-30665
JSON object : View
Products Affected
apple
- watchos
- iphone_os
- macos
- ipados
- tvos
CWE
CWE-787
Out-of-bounds Write
