CVE-2026-65341 in iOS
Summary
by MITRE • 08/18/2026
The issue was addressed with improved memory handling. 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 memory corruption.
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Analysis
by VulDB Data Team • 08/18/2026
The vulnerability described involves a critical flaw in the underlying memory management mechanisms of Apple's operating systems, specifically affecting iOS, iPadOS, and macOS Tahoe. The root cause lies in improper handling of memory resources during the processing of specific data structures or inputs. When an application attempts to allocate, deallocate, or manipulate memory blocks based on user-supplied or network-derived content without adequate validation or bounds checking, it can result in a state where the system's assumptions about memory layout are violated. This type of defect is classically categorized under CWE-120 Buffer Overflow and related categories such as CWE-787 Out-of-bounds Write if the corruption involves writing beyond allocated boundaries, or CWE-416 Use After Free if the issue stems from accessing memory that has already been released. The core technical flaw represents a failure in enforcing strict memory safety constraints, allowing external inputs to corrupt adjacent memory regions or overwrite critical control data structures within the application process space.
The operational impact of this vulnerability is severe due to its potential for remote code execution. By processing maliciously crafted web content, an attacker can trigger the memory corruption condition during normal browsing activities or when rendering specific media types embedded in a webpage. This exploitation vector aligns with MITRE ATT&CK technique T1059 Command and Scripting Interpreter if the subsequent steps involve executing scripts, but more critically it facilitates T1203 Exploitation for Client Execution. Once memory corruption is achieved, an attacker can potentially overwrite function pointers or return addresses on the stack to redirect program execution flow. This allows the injection and execution of arbitrary code with the privileges of the affected application, which often includes sandboxed environments that may still provide access to sensitive user data such as contacts, photos, location history, and authentication tokens stored by web browsers or associated services.
The remediation strategy implemented in iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, and macOS Tahoe 26.6.2 focuses on hardening the memory handling routines within the web content processing engine. This likely involves introducing stricter bounds checking before memory operations are performed, utilizing safer programming constructs that prevent out-of-bounds access, or implementing advanced mitigation techniques such as Address Space Layout Randomization (ASLR) and Heap Protection mechanisms to make exploitation more difficult even if a flaw exists. These updates ensure that malformed inputs are detected early in the parsing phase rather than during critical memory manipulation stages. For users of these platforms, applying this update is essential to close the attack surface associated with web-based content processing. Organizations should enforce automatic OS updates on managed devices and educate end-users about the risks of visiting untrusted websites or clicking on suspicious links that may host exploit kits designed to trigger such vulnerabilities in older software versions.