CVE-2021-30661
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. 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..
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Apple | iOS and iPadOS | unspecified < 14.5 | affected |
| Apple | Safari | unspecified < 14.1 | affected |
| Apple | tvOS | unspecified < 14.5 | affected |
| Apple | watchOS | unspecified < 7.4 | affected |
| Apple | macOS | unspecified < 11.3 | affected |
| Apple | macOS | unspecified < 12.5 | affected |
Weaknesses
- 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.
ADP Enrichment
CVE Program Container
Additional References
- https://support.apple.com/en-us/HT212317
- https://support.apple.com/en-us/HT212323
- https://support.apple.com/en-us/HT212324
- https://support.apple.com/en-us/HT212325
- https://support.apple.com/en-us/HT212341
- https://support.apple.com/en-us/HT212318
CISA ADP Vulnrichment
- SSVC:
- Exploitation: active
- Automatable: no
- Technical Impact: total
Additional References
References
- https://support.apple.com/en-us/HT212317
- https://support.apple.com/en-us/HT212323
- https://support.apple.com/en-us/HT212324
- https://support.apple.com/en-us/HT212325
- https://support.apple.com/en-us/HT212341
- https://support.apple.com/en-us/HT212318
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