9.3 Critical

CVE-2026-112521 A buffer overflow was addressed with improved bounds checking

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A sandboxed process may be able to circumvent sandbox restrictions.

CVSS 3.1 detail

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

Exploitable with local access to the machine, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Local
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
macOS 27.2	earliest → < 27.2	27.2
macOS 26.7	earliest → < 26.7.2	26.7.2
macOS 15.8	earliest → < 15.8.2	15.8.2

References

support.apple.com support.apple.com
support.apple.com support.apple.com
support.apple.com support.apple.com

Timeline

Published October 26, 2026
Last modified November 4, 2026

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