CVE-2024-40805 is a permissions bypass vulnerability affecting Apple iOS and iPadOS, identified as CWE-281 (Improper Restriction of Operations within the Bounds of a Memory Buffer). The vulnerability allows a malicious app to circumvent the privacy preferences set by the user or system, potentially gaining unauthorized access to sensitive data or system functions. This bypass occurs without requiring any user interaction or prior authentication, increasing the risk of stealthy exploitation. The issue was addressed by Apple through additional restrictions implemented in iOS 17.6, iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, and watchOS 10.6. The CVSS v3.1 base score is 7.7, reflecting high severity due to the high impact on confidentiality and integrity, combined with low attack complexity and no required privileges or user interaction. Although no active exploits have been reported, the vulnerability poses a significant risk to user privacy and data security, especially on devices running older, unpatched versions. The vulnerability affects a broad range of Apple platforms, emphasizing the importance of comprehensive patch management across all Apple devices in an organization.

The primary impact of CVE-2024-40805 is the potential unauthorized access to sensitive user data and system resources by malicious applications, bypassing user-configured privacy settings. This compromises confidentiality and integrity, as attackers could read or manipulate protected information without detection. The vulnerability does not affect availability but can lead to significant privacy violations and data breaches. Organizations relying on Apple mobile devices for sensitive communications, business operations, or personal data storage face increased risk of data leakage and regulatory non-compliance if devices remain unpatched. The ease of exploitation—requiring only local app installation without user interaction or privileges—means that supply chain attacks, malicious app store submissions, or insider threats could leverage this flaw. This could undermine trust in Apple’s privacy model and impact sectors such as finance, healthcare, government, and enterprises with high data protection requirements.

To mitigate CVE-2024-40805, organizations and users should immediately update all affected Apple devices to iOS 17.6, iPadOS 17.6, or later versions as applicable. Beyond patching, organizations should enforce strict app vetting policies, including the use of Mobile Device Management (MDM) solutions to restrict app installations to trusted sources only. Implement runtime monitoring to detect anomalous app behavior that might indicate attempts to bypass privacy controls. Educate users about the risks of installing untrusted applications and the importance of applying updates promptly. For enterprise environments, consider deploying endpoint detection and response (EDR) tools capable of monitoring privacy-related API calls and permissions usage. Regularly audit device privacy settings and app permissions to ensure compliance with organizational policies. Finally, maintain an incident response plan that includes steps for handling potential data breaches stemming from privacy bypass vulnerabilities.