Use After Free Vulnerability in Apple Operating Systems
CVE-2026-43812

9.8CRITICAL

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Mac OS
TV OS
Visionos
Vendor
CVE Published:
27 July 2026

What is CVE-2026-43812?

A use after free vulnerability has been identified in Apple operating systems, which could allow an application to exploit improper memory management. This flaw may result in unexpected system termination, potentially impacting user experience and device stability. Apple addressed this issue in the latest updates for iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, and visionOS 26.6, enhancing the security posture of these platforms and ensuring smoother operation.

Affected Version(s)

iOS and iPadOS 0 < 18.7.10

iOS and iPadOS 0 < 26.6

macOS 0 < 15.7.8

References

https://support.apple.com/en-us/128066
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128069

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.