Product:
Safari
Summary
The issue was addressed with improved memory handling. Processing maliciously crafted web content may lead to an unexpected process crash. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 4.3 | CVE-2026-20664 |
Exploitation
An attacker can exploit this vulnerability by crafting malicious web content that, when processed by the affected version of Safari, can lead to a crash of the application. This requires user interaction, as the user must visit a specially crafted website to trigger the vulnerability.
Affected Products
- Safari: A web browser that may crash when processing maliciously crafted web content.
- iOS: The mobile operating system that includes Safari and is affected by the same vulnerability.
- iPadOS: The operating system for iPads that also includes Safari and is vulnerable.
- macOS Tahoe: The desktop operating system that includes Safari and is impacted by this issue.
- visionOS: The operating system for Apple Vision devices that is also affected.
Mitigation
To mitigate this issue, users should update their Safari browser and related operating systems to the latest versions where the vulnerability has been addressed. Regularly updating software can help protect against known vulnerabilities.