Apple macOS Sandbox Flaw Gets Public Exploit Release

A proof-of-concept exploit targeting a recently patched macOS flaw has been made public, raising concerns among cybersecurity experts. The vulnerability, tracked as CVE-2025-31258, affects the RemoteViewServices framework, which handles content rendering and preview features in macOS. The flaw allows malicious applications to partially escape Apple’s sandbox protections, potentially exposing sensitive system resources and user data.

Apple addressed the issue in its macOS Sequoia 15.5 update released on May 12, 2025, stating it removed the vulnerable code. The company reported no evidence of active exploitation prior to the patch. However, shortly after the update’s release, a security researcher published a working proof-of-concept on GitHub, labeling it a “1day practice.”

Security professionals are urging users to update their systems immediately, warning that the availability of public exploit code significantly heightens the risk to unpatched devices. The vulnerability was part of a broader security update addressing multiple macOS components.