CVE-2026-84543

CVE-2026-84543 is an out-of-bounds access vulnerability in macOS SMB server connection handling, addressed with improved bounds checking. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory . The issue is fixed in macOS Golden Gate 27 , macOS Sequ...

CVE-2026-84515

An out-of-bounds write vulnerability in macOS can be triggered by connecting to a malicious SMB server , potentially leading to kernel memory corruption . The issue was addressed through improved bounds checking and is fixed in macOS Golden Gate 27 , macOS Sequoia 15.8 , and macOS Tahoe 26.7 . No...

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...

Vulnerability Spotlight: Information disclosure vulnerability in macOS SMB server

Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an exploitable integer overflow vulnerability in Apple macOS’ SMB server that could lead to information disclosure. Server Message Block SMB is a network... This is only the...