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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Title Out‑of‑Bounds Write Allowing Arbitrary Code Execution via Malicious File
First Time appeared Apple
Apple macos
Weaknesses CWE-125
CWE-788
Vendors & Products Apple
Apple macos
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 26 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description 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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-10-27T03:56:16.360Z

Reserved: 2026-09-08T16:43:41.879Z

Link: CVE-2026-86929

cve-icon Vulnrichment

Updated: 2026-10-26T21:44:04.616Z

cve-icon NVD

Status : Received

Published: 2026-10-26T21:20:30.323

Modified: 2026-10-27T04:17:58.753

Link: CVE-2026-86929

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T01:45:13Z

Weaknesses