Screen Sharing Server flaw used in attacks
A flaw in Screen Sharing Server, part of macOS. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials. CISA lists it as actively exploited.
- On a Mac
- Every Mac still on an affected version. The fix comes with the macOS update.
- The fix
- macOS 14.8.9, 15.7.9, 26.6.1 and 27
- Attacks
- In CISA’s catalog of exploited flaws since August 18, 2026.
- CVE
- CVE-2026-65400
From the Briefing, updated 19 minutes ago.

