BaseFortify

Publication date: 2025-11-04

Last updated on: 2026-04-02

Assigner: Apple Inc.

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-04

Last Modified

2026-04-02

Generated

2026-07-06

AI Q&A

2025-11-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-43447

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ipados	to 26.1 (exc)
apple	iphone_os	to 26.1 (exc)
apple	visionos	to 26.1 (exc)
apple	watchos	to 26.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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.
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper memory handling that could allow an app to cause unexpected system termination or corrupt kernel memory. It has been addressed by improved memory handling in watchOS 26.1, iOS 26.1, iPadOS 26.1, and visionOS 26.1.

Impact Analysis

An app exploiting this vulnerability may cause your device to unexpectedly terminate system processes or corrupt kernel memory, potentially leading to system instability or crashes.

Mitigation Strategies

The vulnerability is fixed in watchOS 26.1, iOS 26.1, iPadOS 26.1, and visionOS 26.1. To mitigate this vulnerability, you should update your devices to these versions or later.

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