CVE-2020-16938

MEDIUM

Windows 10 and Windows Server 2016 - Information Disclosure via Kernel Memory Handling

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2020-16938. PoCs published by ioncodes, mrlayle.

AI-analyzed exploit summary This PoC exploits CVE-2020-16938 to bypass NTFS permissions, allowing an unprivileged user to read arbitrary files on the disk. It uses Windows API calls to open a handle to a disk device via the \Global?? directory and symbolic link traversal.

Description

<p>An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.</p> <p>The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.</p>

Exploits (2)

nomisec WORKING POC 190 stars
by ioncodes · poc
https://github.com/ioncodes/CVE-2020-16938

This PoC exploits CVE-2020-16938 to bypass NTFS permissions, allowing an unprivileged user to read arbitrary files on the disk. It uses Windows API calls to open a handle to a disk device via the \Global?? directory and symbolic link traversal.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (NTFS)
No auth needed
Prerequisites: Unprivileged user access on a vulnerable Windows system
devstral-2 · analyzed Feb 16, 2026 Full analysis →
gitlab WORKING POC
by mrlayle · poc
https://gitlab.com/mrlayle/CVE-2020-16938

The repository contains a functional exploit for CVE-2020-16938, which bypasses NTFS permissions to achieve unrestricted file read access on Windows systems. The PoC uses Windows API calls to open a handle to a disk device via the \Global?? directory, demonstrating the vulnerability.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (NTFS)
No auth needed
Prerequisites: Unprivileged user access on a vulnerable Windows system
devstral-2 · analyzed Feb 23, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 5.5
EPSS 0.0233
EPSS Percentile 81.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

Status published
Products (2)
microsoft/windows_10 2004
microsoft/windows_server_2016 2004
Published Oct 16, 2020
Tracked Since Feb 18, 2026