CVE-2026-65332 in iOS
Summary
by MITRE • 08/18/2026
This issue was addressed through improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
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Analysis
by VulDB Data Team • 08/18/2026
The vulnerability described involves a flaw in the state management logic within Apple's WebKit engine, which powers the Safari browser across iOS and macOS platforms. State management issues typically arise when an application fails to correctly track or update its internal condition during complex operations, such as parsing dynamic web content. In this specific instance, the processing of maliciously crafted web pages triggers a failure in how Safari manages memory states or object lifecycles associated with rendering engine components. This defect allows attackers who host specially designed HTML, CSS, JavaScript, or other web technologies to exploit inconsistencies in the browser's internal state tracking mechanisms.
The primary operational impact of this vulnerability is a denial of service condition manifested as an unexpected crash of the Safari application. When a user visits a malicious website containing the crafted content, the flawed state management logic causes the browser process to terminate abruptly. While this does not directly result in arbitrary code execution or data exfiltration on its own, it significantly degrades system stability and availability for the end-user. Furthermore, such crashes can serve as an initial vector for more sophisticated attacks by disrupting security controls that rely on continuous browser operation or by triggering secondary vulnerabilities related to memory corruption if the crash involves improper handling of freed resources.
From a technical classification perspective, this issue aligns with CWE-672, which refers to the use of operations after they become invalid, often leading to undefined behavior and crashes. It may also relate to CWE-362 regarding concurrent execution using shared resources without proper synchronization if the state error stems from race conditions during web content processing. In terms of adversary tactics, this vulnerability supports ATT&CK technique T1499, Endpoint Denial of Service, where an attacker aims to disrupt or deny service to a specific target by exhausting system resources or causing application failures through malicious input.
Mitigation for this issue is primarily addressed through the software updates provided by Apple. Users and administrators should ensure that devices are running iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, or macOS Tahoe 26.6.2 or later versions where the state management logic has been corrected to handle edge cases in web content parsing more robustly. Until patches are applied, users should exercise caution when visiting untrusted websites and consider using alternative browsing methods with enhanced security restrictions if available on their platform. Regular maintenance of operating system components is critical to closing these gaps in browser engine resilience against crafted malicious inputs.