Apple has released macOS Sequoia 15.8.1 to address a critical security vulnerability within the CoreGraphics component. The flaw, identified as CVE-2026-86950, is an out-of-bounds write issue that can be triggered by processing a maliciously crafted file, potentially leading to arbitrary code execution.
Significantly, Apple acknowledged reports that this vulnerability may have been leveraged in highly sophisticated, targeted attacks against individuals using older versions of iOS. The security fix involves improved bounds checking to prevent exploitation. The discovery is credited to Meta Product Security.
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