CVE-2026-112461 in iOS
Summary
by MITRE • 10/26/2026
An out-of-bounds write issue was addressed with improved bounds checking. 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 out-of-bounds write condition within the system components responsible for processing three-dimensional graphics data structures. This type of flaw typically arises when software fails to properly validate input parameters before writing them into allocated memory buffers, allowing a malicious actor to overwrite adjacent memory locations with arbitrary data. The root cause is identified as insufficient bounds checking during the parsing or rendering pipeline execution, which permits writes beyond the intended boundaries of the target buffer. Such errors are critical because they can lead to heap corruption, stack overflow conditions, or control flow hijacking depending on the specific memory layout and the content injected by the attacker.
From a technical perspective, this issue aligns with Common Weakness Enumeration category CWE-787: Out-of-bounds Write. In the context of modern operating systems like iOS, iPadOS, macOS, and visionOS, these vulnerabilities often reside in low-level graphics libraries or media processing frameworks that handle complex file formats such as OBJ, FBX, or GLTF files used for 3D modeling. When a user opens a maliciously crafted model file containing specially constructed geometry data, the application processes the input without verifying that all indices and offsets fall within the valid range of the pre-allocated memory space. This lack of validation enables an attacker to craft payloads that exploit the resulting memory corruption to execute arbitrary code with the privileges of the affected process or potentially escalate privileges if the vulnerable component runs in a privileged context.
The operational impact of this vulnerability is severe, particularly given its potential for remote exploitation through social engineering vectors such as phishing emails containing malicious attachments or compromised websites hosting exploitable 3D content. Successful exploitation could result in full system compromise, data exfiltration, or denial of service conditions due to application crashes caused by memory corruption. Furthermore, because these vulnerabilities exist in core operating system components rather than third-party applications, they affect a broad range of devices including iPhones, iPads, Macs, and Vision Pro headsets running the specified versions. The ability to trigger this flaw via standard file opening mechanisms means that users are at risk simply by viewing or importing untrusted 3D assets without needing any special user interaction beyond initial file access.
To mitigate these risks, it is imperative for organizations and individual users to apply the provided software updates immediately. Apple has addressed this issue 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 by implementing stricter bounds checking routines within the relevant processing modules. These updates ensure that any attempt to write data outside of allocated memory regions is detected and halted before corruption occurs. Additionally, security teams should enforce policies regarding the handling of untrusted media files, utilizing sandboxing techniques where possible to limit the impact if a vulnerability were present in older versions not yet patched. Monitoring for anomalous behavior related to graphics processing services can also serve as an indicator of compromise attempts targeting this class of vulnerabilities.
In terms of threat intelligence and attack mapping, this vulnerability corresponds to MITRE ATT&CK technique T1203: Exploitation for Client Execution, specifically within the context of file format exploitation. Attackers frequently leverage such flaws in widely used formats like 3D models to deliver malware payloads under the guise of legitimate content. The fix emphasizes the importance of robust input validation and memory safety practices in software development lifecycles. By ensuring that all array indices, buffer offsets, and size calculations are rigorously validated against actual allocated sizes, developers can prevent out-of-bounds writes from occurring. This incident serves as a reminder of the persistent risk associated with complex file parsing engines and the necessity for continuous security updates to address newly discovered weaknesses in core system libraries across Apple's ecosystem.