CVE-2021-33743
published 2021-07-14CVE-2021-33743: Windows Projected File System Elevation of Privilege Vulnerability
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.65%
48.9th percentile
Windows Projected File System Elevation of Privilege Vulnerability
Affected
34 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.2061 | 10.0.17763.2061 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.2061 | 10.0.17763.2061 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1679 | 10.0.18363.1679 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19041.1110 | 10.0.19041.1110 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1110 | 10.0.19042.1110 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1110 | 10.0.19043.1110 |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.2061 | 10.0.17763.2061 |
| microsoft | windows_server_version_2004 | >= 10.0.0 < 10.0.19041.1110 | 10.0.19041.1110 |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < 10.0.19042.1110 | 10.0.19042.1110 |
| msrc | windows_10_version_1809_for_32-bit_systems | — | — |
| msrc | windows_10_version_1809_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1809_for_x64-based_systems | — | — |
| msrc | windows_10_version_1909_for_32-bit_systems | — | — |
| msrc | windows_10_version_1909_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1909_for_x64-based_systems | — | — |
| msrc | windows_10_version_2004_for_32-bit_systems | — | — |
| msrc | windows_10_version_2004_for_arm64-based_systems | — | — |
| msrc | windows_10_version_2004_for_x64-based_systems | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vendor_msrc7.8HIGH
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VulDB
Microsoft Windows up to Server 2019 Projected Filesystem privilege escalation
vuldb·2026-08-11·CVSS 7.8
CVE-2021-33743 [HIGH] Microsoft Windows up to Server 2019 Projected Filesystem privilege escalation
A vulnerability was found in Microsoft Windows up to Server 2019. It has been rated as critical. Affected is an unknown function of the component Projected Filesystem. This manipulation causes privilege escalation.
This vulnerability is tracked as CVE-2021-33743. The attack is possible to be carried out remotely. No exploit exists.
To fix this issue, it is recommended to deploy a patch.
GHSA
GHSA-hm2x-9mrv-7fj2: Windows Projected File System Elevation of Privilege Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-33743 [HIGH] CWE-269 GHSA-hm2x-9mrv-7fj2: Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability
Microsoft
Windows Projected File System Elevation of Privilege Vulnerability
vendor_msrc·2021-07-13·CVSS 7.8
CVE-2021-33743 [HIGH] Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System: Windows Projected File System
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5004244
Reference: https://support.microsoft.com/help/5004244
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5004245
Reference: https://support.microsoft.com/help/5004245
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5004237
Reference: https://support.microsoft.com/help/5004237
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-07-14
Published