CVE-2026-43810
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Memory Corruption in Apple iOS and macOS
Vulnerability report for CVE-2026-43810, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-07-27
Last updated on: 2026-07-29
Assigner: Apple Inc.
Description
Description
The issue was addressed with improved memory handling. This issue is fixed in 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. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | macos | From 14.0 (inc) to 14.8.8 (exc) |
| apple | macos | From 15.0 (inc) to 15.7.8 (exc) |
| apple | macos | From 26.0 (inc) to 26.6 (exc) |
| apple | ipados | to 26.6 (exc) |
| apple | iphone_os | to 26.6 (exc) |
| apple | tvos | to 26.6 (exc) |
| apple | visionos | to 26.6 (exc) |
| apple | watchos | to 26.6 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
| CWE-119 | The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. |
