CVE-2026-84536
An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination.
- Published Sep 14, 2026
- CVSS 6.5 medium
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available