CVE-2025-30445 is a vulnerability classified as CWE-843 (type confusion) that affects Apple’s iOS, iPadOS, macOS, tvOS, and visionOS platforms. The issue stems from improper type validation within the affected operating systems, which can be exploited by an attacker positioned on the same local network as the target device. By leveraging this flaw, the attacker can induce unexpected termination of applications, effectively causing denial-of-service conditions. The vulnerability does not require any privileges or user interaction, making it easier to exploit in local network scenarios. Apple addressed this issue by implementing improved type checks in the affected OS versions: iOS 18.4, iPadOS 18.4 and 17.7.6, macOS Sequoia 15.4, Sonoma 14.7.5, Ventura 13.7.5, tvOS 18.4, and visionOS 2.4. The CVSS v3.1 score of 6.5 reflects a medium severity level, primarily due to the impact on availability without affecting confidentiality or integrity. Although no active exploits have been reported, the vulnerability’s presence in widely used Apple platforms necessitates prompt remediation to avoid potential service disruptions in environments where local network attackers could exist.

The primary impact of CVE-2025-30445 is on the availability of applications running on affected Apple devices. An attacker on the local network can cause apps to crash unexpectedly, potentially disrupting business operations, user productivity, and service continuity. While the vulnerability does not compromise data confidentiality or integrity, repeated or targeted exploitation could lead to denial-of-service conditions affecting critical applications. Organizations relying heavily on Apple devices in office or enterprise environments with shared local networks are particularly vulnerable. This could affect sectors such as finance, healthcare, education, and government where Apple devices are prevalent. The lack of required privileges or user interaction lowers the barrier for exploitation, increasing the risk in environments with untrusted local network access. However, the absence of known exploits in the wild currently limits immediate widespread impact.

To mitigate CVE-2025-30445, organizations should prioritize deploying the patched versions of Apple operating systems as soon as possible. Specifically, update devices to iOS 18.4, iPadOS 18.4 or 17.7.6, macOS Sequoia 15.4, Sonoma 14.7.5, Ventura 13.7.5, tvOS 18.4, and visionOS 2.4. Network segmentation should be employed to limit local network access to trusted devices only, reducing the attack surface. Implement strict access controls and monitoring on local networks to detect unusual traffic patterns that may indicate exploitation attempts. Additionally, organizations should educate users about the importance of installing OS updates promptly. For environments where immediate patching is not feasible, consider disabling or restricting network services that could be exploited via local network vectors. Continuous vulnerability scanning and endpoint monitoring can help identify unpatched devices and anomalous app terminations indicative of exploitation attempts.