8.8
High
Exploited
CVE-2021-1789 Apple Multiple Products Type Confusion Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-843
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| iOS and iPadOS 14.4 | earliest → < 14.4 | 14.4 |
| macOS 14.0 | earliest → < 14.0 | 14.0 |
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
- FEDORA-2021-864dc37032 lists.fedoraproject.org
- FEDORA-2021-619711d709 lists.fedoraproject.org
- GLSA-202104-03 security.gentoo.org
Timeline
- Published
- Added to the KEV catalogue
- Last modified
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