Vulnerability intelligence
CVE-2026-84543
Apple macOS
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory.
CVSS Score
7.5
High
EPSS — Exploit Probability
0.4%
Riskier than 35% of all CVEs · checked 2026-09-29
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Sep 29, 2026 · latest Sep 29, 2026
Coverage timeline
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macOS SMB Flaw Exposes Macs to Kernel Panics via Malicious Sharessecurityonline.info · Sep 29, 2026