CVE-2026-86900Medium· 6.5▾ SunlitAn 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.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
— → 6.5
none → medium
Last analysed / modified upstream
0.2% → 0.3%
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.
macos < 27.0Upgrade past the affected range:
macos 27.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-86929High· 8.8An out-of-bounds write issue was addressed with improved bounds checking
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CVE-2026-84539NoneAn out-of-bounds write issue was addressed with improved bounds checking
CVE-2026-84610NoneA file quarantine bypass was addressed with additional checks
CVE-2026-84542NoneAn access issue was addressed with improved access restrictions
CVE-2026-65392NoneA permissions issue was addressed with additional restrictions