CVE-2026-65414 in iPadOS
Summary
by MITRE • 09/15/2026
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability described constitutes a critical out-of-bounds write flaw within the core operating system components of Apple's ecosystem, specifically affecting iOS, iPadOS, macOS, tvOS, visionOS, and watchOS platforms. This type of memory corruption error occurs when software writes data to a memory location beyond the intended boundaries of a buffer or array structure. In this specific instance, the root cause was identified as insufficient bounds checking during input processing or internal state management operations. The absence of rigorous validation allowed an attacker to manipulate pointer arithmetic or index values, thereby directing write operations into adjacent memory regions that are not allocated for the target data structure. This fundamental flaw in memory safety mechanisms represents a significant deviation from secure coding practices and highlights the importance of strict boundary verification in system-level software development.
The operational impact of this vulnerability is severe due to its potential for remote exploitation. A malicious actor, potentially through a crafted web page or networked service interaction, can trigger the out-of-bounds write condition without requiring user authentication or physical access. The immediate consequence of such an exploit is often application instability, manifesting as unexpected termination crashes that disrupt normal device functionality and degrade the user experience. However, the more critical risk lies in the potential for arbitrary code execution. By carefully crafting the payload to overwrite specific memory structures, such as function pointers, return addresses, or object metadata, an attacker can hijack the control flow of the executing process. This capability allows the adversary to execute malicious commands with the privileges of the compromised application, which may escalate to higher system levels depending on the context and sandboxing configurations in place.
From a classification perspective, this vulnerability aligns closely with CWE-787: Out-of-bounds Write, as defined by the Common Weakness Enumeration standard. This category encompasses errors where an application writes data past the end or before the beginning of the intended buffer, leading to undefined behavior and potential security breaches. Furthermore, in the context of the MITRE ATT&CK framework, this flaw facilitates techniques associated with Initial Access and Execution phases, particularly those involving memory corruption exploits like heap spraying or stack pivoting. The ability to achieve arbitrary code execution via a remote vector places it among high-severity threats that require immediate attention from security operations teams and system administrators responsible for maintaining the integrity of Apple-based infrastructure.
Mitigation strategies primarily rely on the deployment of the software updates provided by Apple, which include iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, and watchOS 27. These updates incorporate improved bounds checking logic that validates memory access requests against allocated limits before execution proceeds. Organizations should prioritize patching all affected devices to close this attack surface. Additionally, implementing defense-in-depth measures such as enabling Memory Protection features like Pointer Authentication Codes (PAC) on supported ARM-based Apple Silicon chips can mitigate the impact of exploitation attempts by making it significantly harder for attackers to reliably hijack control flow even if a memory corruption vulnerability is present. Regular security audits and adherence to secure coding standards that emphasize rigorous input validation are essential preventive measures against similar vulnerabilities in future software releases.