CVE-2022-42850 is a high-severity vulnerability affecting Apple iOS and iPadOS operating systems. The flaw stems from improper memory handling, classified under CWE-787 (Out-of-Bounds Write), which allows a maliciously crafted app to execute arbitrary code with kernel privileges. Kernel privileges represent the highest level of access on the device, enabling full control over the operating system and hardware. Exploitation requires local access (AV:L) and user interaction (UI:R), but no prior privileges (PR:N) are needed, meaning any app installed by a user could potentially trigger the vulnerability. The vulnerability affects unspecified versions prior to iOS and iPadOS 16.2, where Apple addressed the issue by improving memory management. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability (all rated high). The scope remains unchanged (S:U), indicating the vulnerability affects only the vulnerable component and does not extend beyond it. Although no known exploits have been reported in the wild, the potential for privilege escalation to kernel level makes this a critical concern for device security. Successful exploitation could lead to complete device compromise, data theft, persistent malware installation, or disruption of device functionality.

For European organizations, this vulnerability poses a significant risk, especially for enterprises and government agencies that rely on iOS and iPadOS devices for communication, data access, and operational tasks. Kernel-level code execution could allow attackers to bypass security controls, access sensitive corporate or personal data, and install persistent malware that evades detection. This could lead to data breaches, espionage, or disruption of critical services. The risk is heightened in sectors with strict data protection requirements such as finance, healthcare, and public administration. Additionally, the requirement for user interaction means phishing or social engineering campaigns could be used to trick users into installing malicious apps or triggering the exploit. Given the widespread use of Apple mobile devices in Europe, the vulnerability could impact a broad user base, including remote workers and mobile professionals, increasing the attack surface.

European organizations should prioritize updating all iOS and iPadOS devices to version 16.2 or later as soon as possible to remediate this vulnerability. Beyond patching, organizations should implement strict app installation policies, restricting users from installing apps outside of the official Apple App Store or from untrusted sources. Mobile Device Management (MDM) solutions should be used to enforce these policies and monitor device compliance. User awareness training should emphasize the risks of installing unverified apps and the importance of prompt updates. Network-level protections such as restricting device access to sensitive corporate resources unless devices are compliant with security policies can reduce risk. Additionally, organizations should enable and monitor Apple’s built-in security features like System Integrity Protection and sandboxing, and consider deploying endpoint detection and response (EDR) tools capable of detecting anomalous kernel-level activity. Regular audits of device security posture and incident response readiness are also recommended.