Name: CVE-2026-20639: Integer Overflow or Wraparound
Creator: Rapid7
Published: 2026-03-25T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-20639, CVSS 7.5, EPSS 0.0004

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Apple Osx Configd	—	Upgrade macOS to the latest version	Mar 27, 2026	Mar 24, 2026

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CVSS Details

Covered by Rapid7

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