8.8
High
Exploited
CVE-2021-30661 Apple Multiple Products WebKit Storage Use-After-Free Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-416
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| iOS and iPadOS 14.5 | earliest → < 14.5 | 14.5 |
| Safari 14.1 | earliest → < 14.1 | 14.1 |
| tvOS 14.5 | earliest → < 14.5 | 14.5 |
| watchOS 7.4 | earliest → < 7.4 | 7.4 |
| macOS 12.5 | earliest → < 12.5 | 12.5 |
References
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
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