Use After Free Vulnerability in Apple Operating Systems
CVE-2026-43799

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-2026-43799?

A use after free vulnerability was identified in various Apple operating systems, potentially allowing unauthorized applications to exploit memory management flaws. This could lead to unexpected system terminations, risking user data and overall device stability. The issue has been addressed in the latest versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS, demonstrating Apple's commitment to enhancing user security and system reliability.

Affected Version(s)

iOS and iPadOS 0 < 18.7.10

iOS and iPadOS 0 < 26.6

macOS 0 < 14.8.8

References

https://support.apple.com/en-us/128066
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128068

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

.