Out-of-Bounds Access Vulnerability in macOS Products by Apple
CVE-2026-84543
7.5HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
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
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.