CVE-2026-122176 · Infrastructure
NO FIX YET
A heap-based buffer overflow in the Windows SMB file-sharing component lets an attacker who already has valid access run code over the network. The sources give a CVSS score of 8.8 and no details on affected versions or fixes.
first public Nov 10, 2026 · 1 source
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Systems running Windows with the SMB file-sharing service reachable on the network may be exposed. The sources do not say which Windows versions are affected or whether default configurations are vulnerable. Machines that do not expose SMB to the network can likely skip it, but the sources do not confirm this.
Not affected if smb-not-exposed
Who cares file-sharing, smb, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Heap-based buffer overflow in Windows SMB allows an authorized attacker to execute code over a network.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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