Use-After-Free Vulnerability in Safari and Apple's OS Products
CVE-2026-43731

8.8HIGH

Key Information:

Vendor

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

What is CVE-2026-43731?

An identified use-after-free vulnerability in Safari and various Apple operating systems could allow attackers to exploit memory management flaws. This issue arises when maliciously crafted web content is processed, potentially leading to memory corruption and unauthorized access. The vulnerability has been addressed in the latest updates, ensuring improved memory management to safeguard users against such exploitation. It is essential for users to update their systems promptly to enhance security.

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:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.