CVE-2026-86901

HighCVSS 7.1/10Last modified Sep 18, 2026

Description

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

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Sep 14, 2026
Last modified
Sep 18, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-869025.5A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27,CVE-2026-869035.5An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS CVE-2026-869047.5A privacy issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOSCVE-2026-869055.5This issue was addressed by removing the vulnerable code. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. AnCVE-2026-869074.4An authorization issue was addressed with improved entitlement checks. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app wCVE-2026-869094.4A logic issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27. An app may be able to bypass GatekeCVE-2026-869105.5A permissions issue was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS TahoCVE-2026-869115.5This issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27. A malicious app may be able to bypass CVE-2026-869135.4A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27,CVE-2026-869145.5An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.CVE-2026-869154.7A race condition was addressed with improved locking. This issue is fixed in macOS Golden Gate 27. An app may be able to cause unexpected syCVE-2026-869177.8A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe
CVE-2026-86901: High severity, CVSS 7.1 | Vulnix