CVE-2026-20639

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CVSS 3.1

7.5 high

EPSS

<1%p47

Published

Mar 25, 2026 (Mar 25, 2026)

Modified

Jun 17, 2026

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.

Vendors: apple
Products: macos
Weakness: CWE-190
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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