Use-After-Free Vulnerability in Safari and iOS Products by Apple
CVE-2026-43717

6.5MEDIUM

Key Information:

Vendor

Apple
Status
Safari
iOS And iPad OS
Mac OS
Vendor
CVE Published:
29 June 2026

What is CVE-2026-43717?

A use-after-free vulnerability was identified in Apple's Safari browser and related iOS products, which could be triggered by processing maliciously crafted web content. This flaw may cause Safari to crash unexpectedly, compromising user experience and system stability. Apple has addressed this issue with improved memory management in version 26.5.2 for Safari, iOS, iPadOS, and macOS Tahoe. Users are encouraged to update their devices to ensure optimal security and functionality.

Affected Version(s)

iOS and iPadOS 0 < 26.5.2

macOS 0 < 26.5.2

Safari 0 < 26.5.2

References

https://support.apple.com/en-us/127594
https://support.apple.com/en-us/127595
https://support.apple.com/en-us/127685

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.