CVE-2026-43778 Details
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
A use-after-free vulnerability has been identified in the kernel of multiple Apple operating systems, including iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, tvOS 26.6, visionOS 26.6, and watchOS 26.6. This vulnerability allows an application to cause unexpected system termination or corrupt kernel memory. The issue has been addressed with improved memory management.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/128066 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128067 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128068 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128069 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128070 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128071 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/128072 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/148287 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple ipados | < 26.6 |
CPE
Remediation
| |
| apple iphone os | < 26.6 |
CPE
Remediation
| |
| apple macos | >= 14.0, < 14.8.8 >= 15.0, < 15.7.8 >= 26.0, < 26.6 |
CPE
Remediation
| |
| apple tvos | < 26.6 |
CPE
Remediation
| |
| apple visionos | < 26.6 |
CPE
Remediation
| |
| apple watchos | < 26.6 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 17, 2026 | CVE Modified | [email protected] |
| Jul 29, 2026 | Initial Analysis | [email protected] |
| Jul 28, 2026 | CVE Modified | CISA-ADP |
| Jul 27, 2026 | New CVE Received | [email protected] |