Aug 2026: Windows SMB Client Elevation of Privilege Vulnerability
CVE-2026-62799 Published on August 11, 2026
Windows SMB Client Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-62799
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Affected Versions
Microsoft Windows 11 version 26H1:- Version 10.0.28000.0 and below 10.0.28000.2704 is affected.