Out-of-Bounds Access Vulnerability in macOS Products by Apple
CVE-2026-84543

Currently unrated

Key Information:

Vendor

Apple

Status
Vendor
CVE Published:
14 September 2026

What is CVE-2026-84543?

An out-of-bounds access issue in Apple's macOS products could allow a malicious SMB server to exploit the vulnerability, leading to unexpected system terminations or potential corruption of kernel memory. This flaw highlights the importance of proper bounds checking in software designed to handle network connections.

Affected Version(s)

macOS 0 < 15.8

macOS 0 < 26.7

macOS 0 < 27

References

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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