CVE-2025-24209 is a buffer overflow vulnerability classified under CWE-120, discovered in Apple tvOS and other Apple operating systems including Safari, iPadOS, iOS, and macOS Sequoia. The vulnerability arises from improper memory handling when processing maliciously crafted web content, which can lead to an unexpected process crash. This crash impacts the availability of the affected process, potentially disrupting services running on Apple tvOS devices. The vulnerability does not require any privileges or user interaction to exploit, but the attack complexity is high, indicating that exploitation is non-trivial and may require specialized knowledge or conditions. The flaw was addressed by Apple in tvOS 18.4 and corresponding updates for other OS versions, which include improved memory handling to prevent buffer overflow. Although no known exploits are currently reported in the wild, the vulnerability poses a risk to environments where Apple tvOS devices are used, especially in scenarios involving web content processing. The CVSS v3.1 score of 7.0 (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H) reflects a network attack vector with high complexity, no privileges or user interaction required, and a significant impact on availability, with limited impact on confidentiality and integrity.

For European organizations, the primary impact of CVE-2025-24209 is on the availability of Apple tvOS devices and related Apple operating systems when processing web content. This could lead to service interruptions in environments relying on Apple TV for digital signage, media streaming, or conference room solutions. Although confidentiality and integrity impacts are low, repeated crashes could degrade user experience and operational continuity. Organizations in sectors such as media, entertainment, education, and corporate environments using Apple tvOS devices are particularly vulnerable. The lack of required privileges or user interaction means attackers could potentially trigger crashes remotely, increasing the risk of denial-of-service conditions. While no exploits are currently known in the wild, the high CVSS score and nature of the vulnerability warrant proactive patching to avoid potential exploitation. Disruption to critical services or customer-facing applications could result in reputational damage and operational costs.

European organizations should prioritize updating all affected Apple devices to tvOS 18.4 or later, as well as applying corresponding patches for Safari 18.4, iPadOS 17.7.6, iOS 18.4, and macOS Sequoia 15.4. Network-level protections such as web content filtering and intrusion detection systems should be configured to identify and block suspicious or malformed web content that could exploit this vulnerability. Organizations should audit their Apple device inventory to ensure no outdated versions remain in use. Employing application whitelisting and restricting access to untrusted web content on Apple tvOS devices can reduce exposure. Monitoring device logs for unexpected crashes or abnormal behavior may help detect attempted exploitation. Additionally, educating IT staff about this vulnerability and maintaining close communication with Apple security advisories will facilitate timely response to any emerging threats or exploit reports.