CVE-2026-112468 in iOS
Summary
by MITRE • 10/26/2026
An out-of-bounds write issue was addressed with improved bounds checking. 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. An app may be able to cause unexpected system termination or corrupt kernel memory.
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Analysis
by VulDB Data Team • 10/26/2026
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, and visionOS platforms. This type of defect is categorized under CWE-787: Out-of-Bounds Write in standard security taxonomies, representing one of the most dangerous classes of memory corruption vulnerabilities. The root cause lies in a failure to properly validate array indices or buffer boundaries before performing write operations, allowing an application to overwrite memory locations that lie outside the intended allocation space. This technical flaw was addressed through improved bounds checking mechanisms within the affected system libraries and kernel components, ensuring that access requests are rigorously validated against allocated limits prior to execution.
The operational impact of this vulnerability is severe due to its potential for arbitrary code execution or denial of service conditions. When an app triggers this out-of-bounds write, it can corrupt adjacent memory structures in the kernel space. Such corruption may lead to unexpected system termination, effectively causing a crash that disrupts availability and stability for all users on the device. More critically, if the overwritten memory contains control flow data or function pointers, a sophisticated attacker could leverage this flaw to execute arbitrary code with kernel-level privileges. This escalation of privilege bypasses standard sandboxing restrictions, granting the malicious application full access to system resources, sensitive user data, and other running processes without authorization.
From an offensive security perspective, exploitation of this vulnerability aligns closely with ATT&CK techniques related to memory corruption and privilege escalation. Attackers typically utilize fuzzing tools or crafted payloads to trigger the specific code path where bounds checking is insufficient. The ability to corrupt kernel memory makes this a high-value target for persistent access strategies, as it allows adversaries to establish rootkits or modify system binaries that survive reboots. The widespread nature of the affected platforms indicates that any device running unpatched versions of iOS 26.7.1 and earlier, iPadOS 26.7.1 and earlier, macOS Golden Gate 27.1 and earlier, macOS Sequoia 15.8.1 and earlier, macOS Tahoe 26.7.1 and earlier, tvOS 27.1 and earlier, or visionOS 27.1 and earlier remains susceptible to this exploit vector.
Mitigation requires immediate deployment of the provided software updates across all managed devices. Organizations should enforce automated update policies to ensure that iOS, iPadOS, macOS, tvOS, and visionOS systems are patched to their respective fixed versions as listed in the advisory. For enterprise environments, implementing strict application whitelisting can reduce the attack surface by preventing untrusted or unsigned applications from executing code that might trigger such kernel-level flaws. Additionally, enabling memory protection features such as Kernel Address Space Layout Randomization (KASLR) and Data Execution Prevention (DEP) provides additional layers of defense, although they do not replace the need for fixing the underlying bounds checking logic. Regular security audits and penetration testing focused on memory safety issues are recommended to identify similar vulnerabilities in custom or third-party applications before they can be exploited in production environments.