CVE-2026-28995 is a logic flaw in Apple iOS and iPadOS sandboxing mechanisms that could allow a malicious application to escape its restricted environment. The sandbox is designed to isolate apps and prevent unauthorized access to system resources or other apps. This vulnerability compromises that isolation, potentially enabling an attacker to execute code or access data beyond the app's sandbox. Apple addressed this issue by implementing improved restrictions in iOS 18.7.9, iPadOS 18.7.9, and related OS versions. The CVSS vector indicates local attack complexity is low, privileges required are low, no user interaction is needed, and the vulnerability impacts confidentiality, integrity, and availability with a scope change. The weakness is categorized under CWE-269 (Improper Privilege Management).

If exploited, a malicious app could break out of its sandbox, potentially gaining unauthorized access to system resources or other app data, leading to full compromise of confidentiality, integrity, and availability on the affected device. This could allow execution of arbitrary code with escalated privileges. However, there are no known exploits in the wild currently.

Apple has released official fixes for this vulnerability in iOS 18.7.9, iPadOS 18.7.9, and corresponding versions of macOS, tvOS, visionOS, and watchOS. Users and administrators should update affected devices to these versions or later to remediate the issue. Since the vulnerability is fixed in these releases, no additional mitigation steps are required beyond applying the official updates.