Out-of-Bounds Write Vulnerability in Apple Operating Systems

CVE-2026-43803

What is CVE-2026-43803?

This vulnerability involves an out-of-bounds write issue that arises from inadequate bounds checking, potentially leading to unexpected system terminations. An attacker could exploit this flaw remotely, allowing for significant disruption in the operation of devices running various versions of Apple operating systems, including iOS, macOS, tvOS, and watchOS. Apple has released updates to address this issue and enhance security across affected platforms.

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