CVE-2026-112449 in iOS
Summary
by MITRE • 10/26/2026
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted 3D model may lead to memory corruption.
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Analysis
by VulDB Data Team • 10/26/2026
The vulnerability described involves an integer overflow condition within the processing logic for three-dimensional models on Apple operating systems including iOS, iPadOS, macOS, and visionOS. Integer overflows occur when an arithmetic operation results in a value that exceeds the maximum limit of the data type used to store it, causing the result to wrap around or truncate unexpectedly. In this specific context, the flaw resides in how input parameters related to 3D model geometry are validated before being allocated memory or processed by rendering engines. When a maliciously crafted 3D file is submitted for processing, the application fails to properly verify that calculated dimensions or buffer sizes remain within safe bounds. This lack of rigorous input validation allows an attacker to manipulate internal counters such that they overflow, leading to incorrect memory allocation calculations.
The operational impact of this flaw is severe because it directly leads to memory corruption. When the integer overflow causes a smaller-than-expected buffer size to be allocated for data that actually requires more space, subsequent write operations will exceed the boundaries of the allocated memory region. This out-of-bounds write can overwrite adjacent memory structures, including function pointers, exception handlers, or other critical control flow data within the application process. Such corruption destabilizes the software environment and creates a pathway for arbitrary code execution if an attacker can carefully craft the payload to exploit specific memory layouts. The vulnerability affects multiple platforms indicating that the underlying graphics processing libraries share common code paths susceptible to this class of error across different device ecosystems.
From a classification perspective, this issue aligns with CWE-190 Integer Overflow or Wraparound and CWE-787 Out-of-bounds Write. These categories highlight the fundamental failure in boundary checking during arithmetic operations and the subsequent unsafe memory access that results from it. In terms of offensive security frameworks such as MITRE ATT&CK, this vulnerability facilitates techniques associated with Initial Exploitation for Privilege Escalation or Defense Evasion through exploitation of binary vulnerabilities. Attackers can leverage these flaws to bypass standard security controls by gaining control over the execution flow of privileged processes that handle media files, which are often run with elevated permissions to ensure smooth rendering and system integration.
Mitigation strategies primarily rely on the software updates provided by Apple in iOS 26.7.2, iPadOS 26.7.2, iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, and visionOS 27.2. These updates implement improved input validation mechanisms that correctly check for potential overflow conditions before performing memory allocations or processing geometric data. For users unable to immediately update their systems, defensive measures include disabling automatic previewing of untrusted files in file browsers and avoiding the opening of 3D model files from unknown sources. Additionally, enabling sandboxing features where available can limit the impact if an exploit is attempted by restricting the affected process's access to critical system resources.