CVE-2025-43353
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2026-04-02

Assigner: Apple Inc.

Description
The issue was addressed with improved bounds checks. This issue is fixed in macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26. Processing a maliciously crafted string may lead to heap corruption.
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Meta Information
Published
2025-09-15
Last Modified
2026-04-02
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-14
NVD
CVE-2025-43353
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
apple macos From 14.0 (inc) to 14.8 (exc)
apple macos From 15.0 (inc) to 15.7 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability involves improper bounds checking when processing strings, which could allow a maliciously crafted string to cause heap corruption. It has been fixed in macOS Sequoia 15.7, macOS Sonoma 14.8, and macOS Tahoe 26 by improving bounds checks.

Impact Analysis

If exploited, this vulnerability could lead to heap corruption, which may cause application crashes, data corruption, or potentially allow an attacker to execute arbitrary code or disrupt system stability.

Mitigation Strategies

Apply the security updates provided by Apple by upgrading to macOS Sequoia 15.7, macOS Sonoma 14.8, or macOS Tahoe 26, as these versions contain the fix with improved bounds checks to prevent heap corruption.

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