CVE-2026-86929High· 8.8▾ TwilightAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · 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. The CVSS score shown above comes from the CISA ADP record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.7%
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to arbitrary code execution.
macOS < 15.8.2macOS < 26.7.2macOS < 27Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-84610NoneA file quarantine bypass was addressed with additional checks
CVE-2026-84542NoneAn access issue was addressed with improved access restrictions
CVE-2026-84545NoneA use after free issue was addressed with improved memory management
CVE-2026-86923NoneAn information disclosure issue was addressed with improved privacy controls
CVE-2026-84528NoneA logging issue was addressed with improved data redaction
CVE-2026-86958NoneThe issue was addressed with improved memory handling