CVE-2025-43342
Critical
Description
A correctness issue was addressed with improved checks. This issue is fixed in Safari 26, iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Apple Safari
PublishedSep 15, 2025
First seenSep 15, 2025
Weakness typeCWE-20Improper input validation
How to fix
Update
- apple safari26.0 or later
- apple ipados18.7 or later
- apple iphone_os18.7 or later
- apple macos26.0 or later
- apple tvos26.0 or later
- apple visionos26.0 or later
- apple watchos26.0 or later
- webkitgtk webkitgtk2.48.7 or later
- wpewebkit wpe_webkit2.48.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple safari | v < 26.0 | 26.0 |
| apple ipados | v < 18.7 | 18.7 |
| apple iphone_os | v < 18.7 | 18.7 |
| apple macos | v < 26.0 | 26.0 |
| apple tvos | v < 26.0 | 26.0 |
| apple visionos | v < 26.0 | 26.0 |
| apple watchos | v < 26.0 | 26.0 |
| webkitgtk webkitgtk | v < 2.48.7 | 2.48.7 |
| wpewebkit wpe_webkit | v < 2.48.7 | 2.48.7 |
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