CVE-2026-39873

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CVSS 3.1

9.8 critical

EPSS

<1%p42

Published

Jul 27, 2026 (Jul 27, 2026)

Modified

Jul 28, 2026

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Connecting to a malicious SMB server may lead to unexpected system termination.

Vendors: apple
Products: macos
Weakness: CWE-119
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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