CVE-2025-43447

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-04 · updated 2026-10-18
Weakness: CWE-787

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An app may be able to cause unexpected system termination or corrupt kernel memory.

Affected products

Apple iPadOS: before 26.1 — fixed in 26.1
Apple Iphone Os: before 26.1 — fixed in 26.1
Apple visionOS: before 26.1 — fixed in 26.1
Apple watchOS: before 26.1 — fixed in 26.1

How to fix

Upgrade to a fixed version: Apple iPadOS 26.1; Apple Iphone Os 26.1; Apple visionOS 26.1; Apple watchOS 26.1. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/125632
https://support.apple.com/en-us/125634
https://support.apple.com/en-us/125638
https://support.apple.com/en-us/125639

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