CVE-2025-43421
Medium
Description
Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Apple Safari
PublishedNov 4, 2025
First seenNov 4, 2025
Weakness typeCWE-125Out-of-bounds readCWE-787Out-of-bounds write
How to fix
Update
- apple safari26.1 or later
- apple ipados26.1 or later
- apple iphone_os26.1 or later
- apple visionos26.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple safari | v < 26.1 | 26.1 |
| apple ipados | v < 26.1 | 26.1 |
| apple iphone_os | v < 26.1 | 26.1 |
| apple visionos | v < 26.1 | 26.1 |
Check your version
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