CVE-2026-64724 in iOS
Summary
by MITRE • 07/28/2026
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An attacker on the local network may be able to cause a denial-of-service.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a memory handling issue that has been addressed through improved memory management techniques in Apple's operating system updates. The flaw exists within the foundational memory allocation and deallocation mechanisms of the affected platforms, creating potential instability that could be exploited by malicious actors. The security patch released with iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6 specifically targets the memory handling routines that were susceptible to improper memory state management.
The technical nature of this vulnerability falls under memory corruption categories where inadequate memory handling can lead to system instability or complete service disruption. Attackers positioned on the local network can exploit this weakness by crafting specific memory operations that trigger the flawed memory management code paths, potentially causing the affected systems to become unresponsive or crash entirely. This type of vulnerability is particularly concerning because it operates at the system level where memory management routines are fundamental to operating system stability and security.
The operational impact of this denial-of-service condition extends beyond simple service interruption, as it can affect the overall reliability of networked devices within the local environment. Systems that rely on consistent availability for critical functions may experience disruptions when exploited, potentially affecting business operations or user productivity. The vulnerability's exploitation requires only local network access, making it particularly dangerous in environments where wireless networks are not properly secured or segmented from critical infrastructure.
From a cybersecurity perspective, this vulnerability aligns with common attack patterns described in the ATT&CK framework under the denial-of-service category, specifically targeting system resources and availability. The fix implemented by Apple demonstrates proper memory management practices that should prevent similar issues from occurring in future deployments. Organizations should prioritize immediate deployment of these security updates across all affected systems to eliminate the risk of exploitation.
The remediation approach taken by Apple reflects industry best practices for memory handling security, emphasizing the importance of proper resource management and bounds checking. This vulnerability type is commonly associated with CWE-129, which deals with improper handling of memory allocation errors, and CWE-131, which addresses incorrect handling of memory buffer sizes. System administrators should verify that all devices within their network infrastructure have been updated to the patched versions to ensure complete protection against this specific threat vector.
The local network requirement for exploitation limits the scope of potential impact but does not eliminate the risk entirely, as attackers may gain local access through various means including social engineering or physical proximity attacks. Organizations should consider implementing additional network segmentation and access controls to reduce the attack surface and prevent unauthorized local network access that could lead to exploitation of this vulnerability. Regular security assessments should include verification of patch compliance across all system components to maintain overall network security posture.
The fix represents a standard memory management improvement that addresses fundamental software engineering principles related to resource allocation and deallocation. This type of vulnerability highlights the critical importance of proper memory handling in preventing both accidental system instability and intentional exploitation attempts. Security teams should monitor for similar memory-related vulnerabilities in other system components and ensure comprehensive testing of memory management routines during software development and update processes.