Heap-based buffer overflow in Microsoft Windows - CVE-2026-119872
Published: November 11, 2026
Vulnerability identifier: #VU165305
CSH Severity: Medium
CVSS v4: 5.4 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-119872
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to system to elevate privileges to SYSTEM.
The vulnerability exists due to a heap-based buffer overflow in Windows USB Driver when handling USB operations. An attacker with physical access to system can exploit heap memory corruption through physical access to gain SYSTEM privileges.
Successful exploitation requires winning a race condition.
Affected software
Microsoft Windows
How to mitigate CVE-2026-119872
Install security update from vendor's website.
Microsoft Windows - addressed in versions 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501