CVE-2024-27826 is a vulnerability in Apple’s iOS and iPadOS operating systems that allows an application to execute arbitrary code with kernel-level privileges. The root cause is improper memory handling, which can be exploited by a malicious app to escalate privileges from user space to kernel space. This type of vulnerability is critical because kernel privileges grant the attacker full control over the device, including the ability to bypass security mechanisms, access sensitive data, and disrupt system operations. The vulnerability affects multiple Apple platforms, including macOS Ventura 13.6.8, macOS Sonoma 14.5, macOS Monterey 12.7.6, watchOS 10.5, visionOS 1.3, tvOS 17.5, iOS 17.5, and iPadOS 17.5, with patches released to address the issue through improved memory handling. The CVSS v3.1 base score is 7.8, indicating high severity, with an attack vector classified as local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is unchanged (S:U), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). No known exploits in the wild have been reported yet, but the vulnerability represents a significant risk if exploited. The CWE classification CWE-269 indicates improper privilege management. The vulnerability requires an attacker to have local access and trick a user into interacting with a malicious app, which then leverages the flaw to gain kernel-level code execution.

For European organizations, this vulnerability poses a significant risk, especially those relying heavily on Apple devices for business operations, communications, and data storage. Kernel-level code execution can lead to complete device compromise, allowing attackers to steal sensitive corporate or personal data, install persistent malware, or disrupt device functionality. This is particularly critical for sectors such as finance, healthcare, government, and critical infrastructure where confidentiality and integrity of data are paramount. The requirement for local access and user interaction somewhat limits remote exploitation but does not eliminate risk, as social engineering or insider threats could facilitate exploitation. Additionally, the widespread use of iOS and iPadOS devices in European enterprises and among employees increases the attack surface. The vulnerability could also be leveraged in targeted attacks against high-value individuals or organizations. The lack of known exploits in the wild currently reduces immediate risk but does not preclude future active exploitation.

1. Apply the latest Apple security updates immediately on all affected devices, including iOS, iPadOS, macOS, watchOS, visionOS, and tvOS versions listed as patched. 2. Enforce strict app installation policies, limiting installations to trusted sources such as the official Apple App Store and using Mobile Device Management (MDM) solutions to control app permissions. 3. Educate users on the risks of installing untrusted applications and the importance of avoiding suspicious links or prompts that could trigger malicious app execution. 4. Monitor devices for unusual behavior indicative of privilege escalation attempts or kernel-level compromise, using endpoint detection and response (EDR) tools where available. 5. Implement network segmentation and access controls to limit the impact of compromised devices within organizational networks. 6. Regularly audit device compliance with security policies and patch levels. 7. For high-security environments, consider additional device hardening measures and restrict physical access to devices to prevent local exploitation.