CVE-2021-31961
published 2021-07-14CVE-2021-31961: Windows InstallService Elevation of Privilege Vulnerability
PriorityP425medium6.1CVSS 3.1
AVLACLPRLUINSUCNILAH
EPSS
0.74%
50.6th percentile
Windows InstallService Elevation of Privilege Vulnerability
Affected
33 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_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 | >= 10.0.0 < 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 | — | — |
| msrc | windows_10_version_20h2_for_32-bit_systems | — | — |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
nvdv2.03.6LOWAV:L/AC:L/Au:N/C:N/I:P/A:P
vendor_msrc6.1MEDIUM
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GHSA
GHSA-6q4f-qhgv-gf97: Windows InstallService Elevation of Privilege Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-31961 [HIGH] CWE-269 GHSA-6q4f-qhgv-gf97: Windows InstallService Elevation of Privilege Vulnerability
Windows InstallService Elevation of Privilege Vulnerability
Microsoft
Windows InstallService Elevation of Privilege Vulnerability
vendor_msrc·2021-07-13·CVSS 6.1
CVE-2021-31961 [MEDIUM] Windows InstallService Elevation of Privilege Vulnerability
Windows InstallService Elevation of Privilege Vulnerability
FAQ: What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker would only be able to delete targeted files on a system. They would not gain privileges to view or modify file contents.
Windows Installer: Windows Installer
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/
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-07-14
Published