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[ CVE-2026-84496 · Published 26 Oct 2026 ]

Vulnerability in Apple macOS

CVSS 6.5 EPSS <1%3 agency advisoriesNo fix listed yet

[ Description ]Official description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Tahoe 26.7.2. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • NCSC-NLNCSC-2026-0455

    Vulnerabilities fixed in Apple MacOS Translated from Dutch

    Probability/damage M/HCVE-2022-26704CVE-2026-20648CVE-2026-20649+296 more CVEs
  • CERT-FRCERTFR-2026-AVI-1387

    Multiple vulnerabilities in Apple products Translated from French

    Multiple vulnerabilities have been discovered in Apple products. Some of them allow an attacker to cause arbitrary code execution, privilege escalation and a breach of data confidentiality. Apple reports that…

    CVE-2026-112483CVE-2026-112566CVE-2026-84539+326 more CVEs
  • BSI CERT-BundWID-SEC-2026-4165

    Apple iOS, iPadOS, macOS and Safari: Multiple vulnerabilities Translated from German

    CVE-2026-112442CVE-2026-112684CVE-2026-112563+325 more CVEs

[ References ]References