CVE-2024-27808 is a memory handling vulnerability classified under CWE-786 that affects Apple’s iOS and iPadOS platforms, along with other Apple operating systems and Safari browser. The vulnerability arises from improper management of memory when processing web content, which can be manipulated by an attacker to execute arbitrary code remotely. This means an attacker could craft malicious web content that, when processed by a vulnerable device, could lead to full compromise of the device’s confidentiality, integrity, and availability. The vulnerability requires user interaction, such as visiting a malicious website or opening a malicious link, and has a CVSS 3.1 base score of 7.5, indicating high severity. The issue was addressed by Apple in updates released in June 2024, including iOS and iPadOS 17.5, Safari 17.5, and macOS Sonoma 14.5. Although no active exploits have been reported in the wild, the potential for exploitation is significant due to the widespread use of Apple devices and the nature of the vulnerability. Attackers exploiting this flaw could gain control over affected devices, potentially leading to data theft, espionage, or disruption of services. The vulnerability impacts a broad range of Apple platforms, increasing the attack surface for organizations relying on Apple ecosystems. The fix involves improved memory handling to prevent the arbitrary code execution vector.

For European organizations, this vulnerability poses a significant risk due to the widespread use of Apple devices in both consumer and enterprise environments. Successful exploitation could lead to unauthorized access to sensitive corporate data, disruption of business operations, and potential lateral movement within networks if compromised devices are connected to corporate resources. The arbitrary code execution capability means attackers could install malware, exfiltrate data, or disrupt device functionality. Sectors such as finance, government, healthcare, and critical infrastructure are particularly vulnerable due to the sensitivity of their data and the reliance on secure mobile communications. The requirement for user interaction means phishing or social engineering campaigns could be used to trigger exploitation. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits rapidly after disclosure. Organizations with Bring Your Own Device (BYOD) policies or extensive mobile workforces are at heightened risk. Failure to patch promptly could result in widespread compromise, reputational damage, and regulatory penalties under GDPR if personal data is exposed.

European organizations should immediately prioritize deploying the Apple security updates released in June 2024, including iOS and iPadOS 17.5, Safari 17.5, and macOS Sonoma 14.5. IT departments must enforce update policies and verify device compliance, especially for mobile and remote users. Implement network-level protections such as web filtering and DNS filtering to block access to known malicious sites and reduce exposure to crafted web content. Educate users on the risks of interacting with unsolicited links or websites, emphasizing caution with emails and messages containing URLs. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous behavior indicative of exploitation attempts. For organizations with mobile device management (MDM), enforce automatic updates and restrict installation of untrusted applications. Monitor security advisories for any emerging exploit reports and be prepared to implement additional controls such as network segmentation to limit lateral movement from compromised devices. Regularly audit and review device inventories to identify and remediate unpatched Apple devices. Consider deploying browser isolation technologies for high-risk users to mitigate web-based threats.