CVE-2021-41378
Windows NTFS Remote Code Execution Vulnerability
7.8 High
Windows NTFS Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
1.57%Up 0.6 points since Nov 10, 2021
What each source reports
CVE List Score used
Windows NTFS Remote Code Execution Vulnerability
Windows NTFS Remote Code Execution Vulnerability
- Record
CVE-2021-41378- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-28406
Windows NTFS Remote Code Execution Vulnerability
- Record
EUVD-2021-28406- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c6hq-jgwh-gh8x
Windows NTFS Remote Code Execution Vulnerability
Windows NTFS Remote Code Execution Vulnerability
- Record
GHSA-c6hq-jgwh-gh8x- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
Windows NTFS Remote Code Execution Vulnerability
- Record
CVE-2021-41378- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1809
- microsoft windows 10 version 1909
- microsoft windows 10 version 2004
- microsoft windows 10 version 20h2
- microsoft windows 10 version 21h1
- microsoft windows 11 version 21h2
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server version 2004
- microsoft windows server version 20h2
- microsoft windows 10
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History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-41378 is a high vulnerability (CVSS 7.8) in Microsoft Windows 10 Version 1809, published November 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.57%, the 75th percentile. No source names a fixed version.