Windows File Server Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.
MSRC compact vulnerability detail
CVE-2026-24283 · Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.
Signals
Windows File Server
Elevation of Privilege
Exploited: No
Publicly disclosed: No
Exploitability: Exploitation Less Likely
CWE
Patch Diff
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Resolved binary override
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Description
Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.
FAQ / Articles
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
FAQ
According to the CVSS score, this vulnerability has Scope: Changed (S:C). What does this mean? A CVSS Scope change (S:C) means that successful exploitation of this vulnerability allows an attacker to access resources outside the original security boundary of the vulnerable component. In this case, the vulnerable code runs within a restricted AppContainer environment, and exploitation could allow an attacker to access sensitive user data outside of that sandbox. Although this does not provide full system control, it represents a break out of the intended isolation boundary.