Vulnerability · NVD

CVE-2026-84520

CVE-2026-84520 : critical severity (CVSS 9.8). No tracked catalog app is linked to this CVE.

Severity (CVSS): 9.8
Exploitation: 0.4 %
Tracked apps: 0
Still exposed: 0

Published on 2026-09-14

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Golden Gate 27. A local attacker may be able to 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:H/I:H/A:H

EPSS 0.45% exploit very unlikely percentile 38.6%

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

View on NVD ↗ Advisory · support.apple.com

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