CVE-2026-113910 in iOS
Summary
by MITRE • 10/26/2026
A memory initialization issue was addressed with improved memory handling. 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, tvOS 27.2, visionOS 27.2, watchOS 27.2. An app may be able to disclose kernel memory.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/26/2026
The vulnerability described constitutes a critical security flaw within the operating system's core components, specifically involving improper initialization of memory structures in the kernel space. This issue arises when the software fails to properly zero out or initialize allocated memory regions before they are made accessible to user-space applications. In standard secure coding practices and industry frameworks such as CWE-120 Buffer Copy without Checking Size of Input and CWE-94 Improper Control of Generation of Code, it is imperative that all dynamically allocated memory be explicitly initialized to prevent the leakage of sensitive data. When this initialization step is omitted or handled incorrectly, residual data from previous operations remains in those memory blocks. This creates a condition where an application can read portions of kernel memory that were not intended for public access, effectively bypassing standard isolation boundaries between user space and privileged system processes.
From an operational perspective, the ability to disclose kernel memory poses severe risks to device integrity and user privacy. Kernel memory often contains sensitive information such as cryptographic keys, session tokens, authentication credentials, or pointers to other critical data structures. An attacker who can exploit this flaw through a malicious application could perform unauthorized reads of these protected areas. This capability aligns with the MITRE ATT&CK technique T1057 Process Discovery and potentially T1003 Credential Dumping if specific memory regions containing secrets are targeted. The exploitation does not necessarily require local physical access but can be triggered remotely or via a compromised app, allowing for potential privilege escalation or further lateral movement within the device ecosystem.
The impact of this vulnerability extends beyond immediate data leakage to include long-term security degradation. If an attacker gains read access to kernel memory, they may identify memory layout randomization patterns such as ASLR bypasses, which significantly lowers the barrier for subsequent exploitation attempts. Furthermore, exposure of internal system states can aid in crafting more precise exploits against other vulnerabilities present on the device. The fact that this issue affects a wide range of Apple platforms including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS indicates a systemic flaw likely rooted in shared core libraries or kernel extensions used across these operating systems. This broad impact surface necessitates urgent attention to prevent widespread compromise across millions of devices globally.
Mitigation for this vulnerability relies entirely on the deployment of the provided software updates which address the memory handling logic by ensuring proper initialization routines are executed before memory exposure occurs. Administrators and users must apply the specified patches immediately, including 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, tvOS 27.2, visionOS 27.2, and watchOS 27.2. In addition to patching, organizations should enforce strict app distribution policies to minimize the risk of malicious applications being installed that could attempt to trigger this flaw. Implementing runtime application self-protection mechanisms and monitoring for unusual kernel memory access patterns can provide additional layers of defense while ensuring all endpoints remain updated with the latest security fixes from Apple.