dyld flaw used in targeted attacks
A flaw in dyld, part of macOS. An attacker with memory write capability may be able to execute arbitrary code. Apple says this may have been exploited in targeted attacks, and 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 26.3
- Attacks
- In CISA’s catalog of exploited flaws since February 12, 2026.
- CVE
- CVE-2026-20700
- Sources
From the Briefing, updated 20 minutes ago.

