CVE-2025-43361 is a vulnerability identified in Apple’s iOS and iPadOS platforms, as well as other Apple operating systems such as macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26, tvOS 26, visionOS 26, and watchOS 26. The root cause is an out-of-bounds read condition (CWE-125) due to insufficient bounds checking in kernel memory access routines. This flaw allows a malicious application, running with limited privileges (local access with low privileges), to read sensitive kernel memory contents. Kernel memory typically contains critical system data, including security credentials, kernel code, and other sensitive information. Unauthorized reading of this memory can lead to information disclosure, privilege escalation, and potentially full system compromise. The vulnerability does not require user interaction to be exploited, which increases its risk profile. Apple has addressed this issue by improving bounds checking in the affected components, and patches are included in the latest OS releases mentioned above. Although no public exploits or active exploitation campaigns have been reported, the vulnerability’s characteristics make it a significant threat, especially in environments where untrusted or malicious apps may be installed. The CVSS v3.1 score of 7.8 reflects high impact on confidentiality, integrity, and availability, with low attack complexity and limited privileges required for exploitation.

The impact of CVE-2025-43361 on organizations worldwide is substantial, particularly for those relying heavily on Apple devices for sensitive communications, data processing, and operational control. Successful exploitation could allow attackers to read kernel memory, potentially exposing encryption keys, authentication tokens, and other sensitive information, leading to data breaches and unauthorized access. This could also facilitate privilege escalation attacks, enabling attackers to gain higher system privileges and execute arbitrary code at the kernel level. The compromise of kernel integrity and availability could result in system instability, denial of service, or persistent backdoors. Organizations in sectors such as finance, government, healthcare, and critical infrastructure, where confidentiality and system integrity are paramount, face heightened risks. Additionally, the vulnerability could be leveraged in targeted espionage or cybercrime campaigns. The broad range of affected Apple operating systems increases the attack surface, impacting mobile devices, desktops, smart TVs, wearables, and emerging platforms like visionOS, complicating defense strategies.

To mitigate CVE-2025-43361, organizations should immediately prioritize updating all Apple devices to the patched OS versions: iOS 26, iPadOS 26, macOS Sequoia 15.7.2 or later, macOS Sonoma 14.8.2 or later, macOS Tahoe 26, tvOS 26, visionOS 26, and watchOS 26. Beyond patching, organizations should enforce strict app vetting policies, limiting installation to trusted sources such as the Apple App Store with rigorous review processes. Employ Mobile Device Management (MDM) solutions to control app permissions and monitor for anomalous behavior indicative of exploitation attempts. Implement kernel integrity monitoring tools where available to detect unauthorized memory access or kernel modifications. Educate users about the risks of installing untrusted applications and the importance of timely updates. For high-security environments, consider additional endpoint protection solutions capable of detecting kernel-level exploits. Regularly audit device configurations and maintain an inventory of Apple devices to ensure comprehensive coverage of patch deployment. Finally, monitor threat intelligence feeds for any emerging exploit code or attack campaigns related to this vulnerability to respond swiftly.