CVE-2024-44238 is a security vulnerability identified in Apple’s iOS and iPadOS operating systems, specifically involving the coprocessor memory management. The flaw arises from inadequate bounds checking in the handling of coprocessor memory, which could allow a maliciously crafted app to corrupt this memory area. The coprocessor in Apple devices handles sensitive operations such as cryptographic functions and secure enclave tasks, so corruption here could undermine device security at a fundamental level. Although the exact affected versions are unspecified, the vulnerability was addressed in iOS and iPadOS 18.1 through improved bounds checks, indicating that earlier versions are vulnerable. Exploitation does not require user interaction beyond app installation, and while no exploits are known in the wild, the potential impact includes privilege escalation, arbitrary code execution, or denial of service within the coprocessor environment. This vulnerability is particularly concerning because it targets a low-level component that enforces security boundaries. The lack of a CVSS score means severity must be inferred from the nature of the flaw: memory corruption in a security-critical component with relatively easy exploitation via a malicious app. The vulnerability underscores the importance of timely patching and app vetting on Apple mobile devices.

For European organizations, the impact of CVE-2024-44238 could be significant, especially for those relying heavily on Apple mobile devices for sensitive communications, secure transactions, or operational control. Corruption of coprocessor memory could lead to unauthorized access to cryptographic keys, bypassing of secure enclave protections, or execution of arbitrary code with elevated privileges. This could compromise confidentiality, integrity, and availability of data and services accessed via iOS/iPadOS devices. Sectors such as finance, government, healthcare, and critical infrastructure that use Apple devices extensively may face increased risk of espionage, data breaches, or operational disruption. The absence of known exploits in the wild reduces immediate risk but does not eliminate the threat, as attackers may develop exploits targeting unpatched devices. The widespread use of iPhones and iPads in Europe means that unpatched endpoints could serve as entry points for broader network compromise or targeted attacks against high-value assets.

European organizations should prioritize upgrading all iOS and iPadOS devices to version 18.1 or later to apply the fix for this vulnerability. Device management policies should enforce mandatory updates and restrict installation of apps to those from trusted sources, such as the Apple App Store with strict vetting. Employ Mobile Device Management (MDM) solutions to monitor device compliance and remotely enforce security policies. Conduct regular audits of installed applications to detect potentially malicious or unauthorized apps. Educate users about the risks of installing apps from untrusted sources or profiles. For highly sensitive environments, consider additional endpoint protection solutions that monitor for anomalous app behavior or memory corruption attempts. Organizations should also maintain incident response plans that include mobile device compromise scenarios. Finally, stay informed about any emerging exploit reports or patches related to this vulnerability.