CVE-2026-65391
High
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Apple Safari
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- apple safari26.6.1 or later
- apple ipados26.6.1 or later
- apple iphone_os26.6.1 or later
- apple macos26.6.2 or later
- apple tvos27.0 or later
- apple visionos27.0 or later
- apple watchos27.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple safari | v < 26.6.1 | 26.6.1 |
| apple ipados | v < 26.6.1 | 26.6.1 |
| apple iphone_os | v < 26.6.1 | 26.6.1 |
| apple macos | v < 26.6.2 | 26.6.2 |
| apple tvos | v < 27.0 | 27.0 |
| apple visionos | v < 27.0 | 27.0 |
| apple watchos | v < 27.0 | 27.0 |
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