CVE-2026-105723: Windows Distributed File System (DFS) Elevation of Privilege Vulnerability
A security flaw in the Windows Distributed File System (DFS) allows unauthorized users to gain higher privileges on affected Windows systems over a network. This means an attacker could perform actions typically restricted to administrators.
QCS published 15/10/2026, 8:51:47 am ISTVendor disclosure 13/10/2026, 12:30:00 pm ISTVerified 15/10/2026, 8:51:47 am ISTRevision 1
In plain language
What this advisory means
A security flaw in the Windows Distributed File System (DFS) allows unauthorized users to gain higher privileges on affected Windows systems over a network. This means an attacker could perform actions typically restricted to administrators.
Technical explanation
How the issue affects the environment
The vulnerability is caused by an untrusted pointer dereference in the Windows Distributed File System (DFS) component. This programming flaw lets an attacker send specially crafted requests over the network to execute code or elevate privileges without proper authorization. The issue affects multiple versions of Windows Server and Windows 10/11 editions.
Operational impact
Why teams should care
If exploited, attackers could elevate their privileges on business-critical Windows servers and desktops, potentially leading to unauthorized access, data theft, or disruption of services. Organizations should prioritize identifying affected systems and apply the available security updates to mitigate risks.
Immediate action
Apply the security updates provided by Microsoft for the affected Windows versions. The updates address the untrusted pointer dereference vulnerability in Windows Distributed File System (DFS). Review and install relevant patches promptly using official Microsoft update channels to reduce exposure.
Affected and fixed releases
Affected versionsVersions detailed in the products list as per Microsoft advisory
