CVE-2026-112475 in macOS
Summary
by MITRE • 10/26/2026
An out-of-bounds read 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. An app may be able to cause unexpected system termination.
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Analysis
by VulDB Data Team • 10/27/2026
The vulnerability described constitutes an out-of-bounds read condition that was remediated through the implementation of enhanced bounds checking mechanisms within the operating system core. This type of memory safety flaw typically arises when a software component accesses data at a memory address that lies outside the intended buffer boundary, specifically reading beyond the allocated limits without proper validation. The root cause is often attributed to insufficient verification of array indices or pointer arithmetic operations during runtime execution. By addressing this issue with improved bounds checking, Apple has ensured that any attempt to access memory locations beyond their designated scope will be intercepted and handled safely, thereby preventing unauthorized data exposure or system instability.
From a technical perspective, out-of-bounds reads are classified under CWE-125 in the Common Weakness Enumeration standard, which denotes an issue where software reads past the end of a buffer. This vulnerability category is particularly dangerous because it can lead to information disclosure if sensitive kernel memory or user data is leaked into application space. Furthermore, depending on how the malformed input triggers the read operation, such flaws can sometimes be chained with other vulnerabilities to facilitate arbitrary code execution, although in this specific instance, the primary observed impact was system termination rather than remote code execution. The ATT&CK framework categorizes similar behaviors under techniques related to collection and discovery, specifically those involving memory scraping or unauthorized access to protected resources, highlighting the potential for attackers to gather intelligence about the target environment if successful exploitation occurs.
The operational impact of this vulnerability centers on the stability and availability of macOS systems running affected versions prior to the patch release in macOS Golden Gate 27.2, Sequoia 15.8.2, and Tahoe 26.7.2. An attacker who can trigger the vulnerable code path within a local application may cause unexpected system termination, effectively resulting in a denial of service condition for the user or specific services running on the machine. While immediate privilege escalation is not explicitly stated as a consequence here, the potential for information leakage remains a significant concern given that out-of-bounds reads often expose internal state data that could aid further exploitation attempts against more complex attack chains involving kernel exploits or sandbox escapes.
To mitigate risks associated with this class of vulnerabilities, it is imperative to apply the latest security updates provided by Apple as soon as they become available for your specific macOS version. Regular patching ensures that known memory safety flaws are closed before attackers can develop reliable exploit code. Additionally, developers should adhere to secure coding practices that emphasize rigorous input validation and boundary checks when handling buffers or array indices. Utilizing static analysis tools during the software development lifecycle can help identify potential out-of-bounds conditions early in the process, reducing the likelihood of such vulnerabilities reaching production environments. For end-users, maintaining up-to-date system configurations and enabling automatic security updates where possible provides a robust defense against exploitation attempts targeting memory management flaws.