EUVD-2026-77948
GHSA-7g7w-689w-qx47
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (apple) · only source for this CVE.
CVSS VectorVendor: apple
Lifecycle Timeline
5DescriptionCVE.org
An out-of-bounds write 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 lead to kernel memory corruption.
AnalysisAI
Kernel-level out-of-bounds write (CWE-787) in the macOS SMB client stack allows a malicious SMB server to corrupt kernel memory when a target Mac connects to it, potentially yielding kernel code execution or a system crash. All macOS branches are affected: Sequoia before 15.8, Tahoe before 26.7, and macOS Golden Gate versions before 27. …
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
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External POC / Exploit Code
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