CVE-2025-24182 is an out-of-bounds read vulnerability in Apple tvOS and other Apple operating systems caused by improper input validation when processing font files. Specifically, a maliciously crafted font can trigger an out-of-bounds read condition, allowing an attacker to read portions of process memory that should not be accessible. This type of vulnerability is categorized under CWE-125. The flaw does not allow direct code execution or system compromise but can lead to disclosure of sensitive information residing in memory, such as cryptographic keys, user data, or other confidential information. Exploitation requires local access to the device and user interaction to process the malicious font, but no elevated privileges are necessary. The CVSS v3.1 base score is 5.5 (medium severity), reflecting the limited attack vector (local), low complexity, no privileges required, but user interaction needed, and high confidentiality impact with no integrity or availability impact. Apple has fixed this vulnerability in tvOS 18.4 and corresponding updates for visionOS, iOS, iPadOS, and macOS Sequoia. No public exploits have been reported yet, but the vulnerability poses a risk especially in environments where Apple devices are used to handle sensitive information. The fix involves improved input validation to prevent out-of-bounds reads when parsing font data.

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive information from Apple devices, including Apple TV units used in conference rooms, digital signage, or media distribution. While the vulnerability does not allow remote exploitation or privilege escalation, the exposure of process memory could aid attackers in gathering intelligence or credentials to facilitate further attacks. Organizations in sectors such as finance, government, healthcare, and critical infrastructure that utilize Apple ecosystems may face increased risk if devices remain unpatched. The impact is compounded in environments where Apple devices are integrated into secure workflows or handle confidential data. Although exploitation requires user interaction and local access, insider threats or targeted attacks could leverage this vulnerability to extract sensitive information. The absence of known exploits reduces immediate risk, but the medium severity rating warrants timely patching to mitigate potential information leakage.

European organizations should prioritize updating all affected Apple devices to the patched versions: tvOS 18.4, visionOS 2.4, iOS 18.4, iPadOS 18.4, and macOS Sequoia 15.4. Beyond patching, organizations should implement strict device usage policies limiting local access to trusted users only, especially for Apple TV devices in shared or public spaces. Employ endpoint detection and response (EDR) solutions capable of monitoring suspicious font file processing or anomalous application behavior. Educate users about the risks of opening untrusted font files or media content that could contain malicious fonts. Network segmentation can help isolate Apple devices used for media from critical infrastructure to reduce lateral movement risk. Regularly audit and inventory Apple devices to ensure timely deployment of security updates. Consider disabling or restricting font installation or processing features where feasible in managed environments. Finally, monitor vendor advisories for any emerging exploit reports or additional mitigations.