An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3. Processing a maliciously crafted string may lead to heap corruption.

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History

Thu, 26 Mar 2026 12:30:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Integer Overflow in macOS
Weaknesses CWE-122

Wed, 25 Mar 2026 22:00:00 +0000

Type Values Removed Values Added
Title Heap Corruption via Integer Overflow in macOS
Weaknesses CWE-122

Wed, 25 Mar 2026 21:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Wed, 25 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 25 Mar 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Wed, 25 Mar 2026 01:00:00 +0000

Type Values Removed Values Added
Description An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3. Processing a maliciously crafted string may lead to heap corruption.
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cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-03-25T19:46:03.898Z

Reserved: 2025-11-11T14:43:07.861Z

Link: CVE-2026-20639

cve-icon Vulnrichment

Updated: 2026-03-25T19:45:59.400Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-25T01:17:04.443

Modified: 2026-03-25T21:32:57.330

Link: CVE-2026-20639

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-26T12:17:56Z

Weaknesses