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CVE-2026-86900

Medium

Description

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted exFAT volume may cause unexpected system termination or kernel memory disclosure.

SeverityMedium
CVSS6.5
Exploit probability—
ProductApple Macos
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-125Out-of-bounds read

How to fix

Update
  • apple macos27.0 or later

Affected products

ProductAffected versionsFixed in
apple macosv < 27.027.0

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