Apple has released security updates for macOS Tahoe 26.6.1, macOS Sequoia 15.7.9, and macOS Sonoma 14.8.9, closing a Screen Sharing vulnerability that could have allowed unauthorized access on Macs.
What the update addresses
The issue, tracked as CVE-2026-65400, involved a weakness in Screen Sharing authentication. In practical terms, it could have let someone on the same network connect without valid credentials and view a Mac's display. Because Screen Sharing can also support remote control, the flaw carried added importance for users who rely on connected workflows.
Who should update
The patch is available not only for the newest macOS release, but also for earlier supported versions. That means many Mac users can secure their devices without waiting for a major system upgrade. Updating is straightforward: open System Settings, go to General, then choose Software Update and follow the on-screen steps.
This release highlights how quickly modern security tools and system updates can protect everyday devices, helping keep personal and professional digital spaces safer as connected computing continues to evolve.
