CVE-2025-24188 is a medium-severity vulnerability affecting Apple Safari browser, identified as a logic issue that can cause the browser to crash unexpectedly when processing maliciously crafted web content. The root cause is related to improper handling of certain web content inputs, leading to a denial-of-service (DoS) condition via application crash. This vulnerability is classified under CWE-703 (Improper Check or Handling of Exceptional Conditions), indicating that Safari does not correctly manage specific edge cases or error conditions in web content processing. The issue does not impact confidentiality or integrity directly but affects availability by causing the browser to terminate unexpectedly. Exploitation requires no privileges (AV:N), no authentication (PR:N), but does require user interaction (UI:R), such as visiting a malicious website or opening a crafted web page. The vulnerability affects unspecified versions of Safari prior to version 18.6 and macOS Sequoia 15.6, where the issue has been fixed. There are no known exploits in the wild at this time, and no public patch links were provided in the source information. The CVSS v3.1 base score is 6.5, reflecting a medium severity primarily due to the impact on availability and ease of exploitation without privileges but requiring user interaction.

For European organizations, this vulnerability poses a risk primarily to end-user productivity and operational continuity. Safari is widely used on Apple devices, including in corporate environments that rely on macOS and iOS platforms. An attacker could craft malicious web content that, when accessed by employees or users, causes Safari to crash, potentially disrupting workflows, causing loss of unsaved data, or triggering repeated application failures. While this does not lead to data breaches or system compromise, repeated or targeted exploitation could be leveraged in denial-of-service campaigns against users or to facilitate social engineering attacks by exploiting user frustration or confusion. Organizations with significant Apple device deployments, especially in sectors like finance, media, and government where Safari usage is common, may experience operational impacts. Additionally, the requirement for user interaction means phishing or malicious website visits are the likely attack vectors, which are common threat vectors in Europe.

European organizations should prioritize updating Safari to version 18.6 or later and macOS Sequoia 15.6 or later as soon as possible to remediate this vulnerability. Beyond patching, organizations should implement web filtering solutions to block access to known malicious or suspicious websites that could host crafted content exploiting this issue. User awareness training should emphasize the risks of interacting with untrusted web content and encourage cautious browsing behavior. Deploying endpoint protection solutions that monitor for abnormal application crashes or unusual browser behavior can help detect exploitation attempts. Network-level monitoring for unusual traffic patterns or repeated browser crashes may also provide early warning. For managed Apple device fleets, leveraging Mobile Device Management (MDM) to enforce timely updates and restrict installation of unapproved software or browser extensions can reduce exposure. Finally, organizations should maintain incident response plans that include procedures for handling denial-of-service conditions caused by application crashes.