Windows Subsystem for Linux
CVE-2020-0636 — Windows Subsystem for Linux Elevation of Privilege Vulnerability
Executive Summary
An elevation of privilege vulnerability exists in the way that the Windows Subsystem for Linux handles files. An attacker who successfully exploited the vulnerability could execute code with elevated privileges. To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application. The security update addresses the vulnerability by correcting how the Windows Subsystem for Linux handles files.
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 7.0
EPSS Score
0.0082
probability of exploitation in the next 30 days
0.52435 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
8 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 1903 for 32-bit Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for ARM64-based Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1903 for x64-based Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1909 for x64-based Systems | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1903 (Server Core installation) | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1909 (Server Core installation) | 4528760 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
4528760 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Andrea Pierini & Christian Danieli, Jarvis_1oop of Pinduoduo Security Research Lab, @edwardzpeng ) of Qihoo 360 Core Security and Jiadong Lu
References
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