Vulnerability · NVD

CVE-2026-84543

CVE-2026-84543 : high severity (CVSS 7.5). No tracked catalog app is linked to this CVE.

Severity (CVSS): 7.5
Exploitation: 0.4 %
Tracked apps: 0
Still exposed: 0

Published on 2026-09-14

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS 0.43% exploit very unlikely percentile 37.1%

OS versions that fix this CVE

This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.

macOS Fixed in 27 26.7 15.8

View on NVD ↗ Advisory · support.apple.com

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