CVE-2021-33781
published 2021-07-14CVE-2021-33781: Azure AD Security Feature Bypass Vulnerability Azure AD Security Feature Bypass Vulnerability
high8.1CVSS 3.1
AVNACLPRLUINSUCHIHAN
EPSS
2.41%
84.0th percentile
Azure AD Security Feature Bypass Vulnerability
Azure AD Security Feature Bypass Vulnerability
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_version_1607 | >= 10.0.0 < 10.0.14393.4704 | 10.0.14393.4704 |
| 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_11_version_21h2 | >= 10.0.0 < 10.0.22000.258 | 10.0.22000.258 |
| microsoft | windows_server_2016 | >= 10.0.0 < 10.0.14393.4704 | 10.0.14393.4704 |
| 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_1607 | — | — |
| msrc | windows_10_version_1809 | — | — |
| msrc | windows_10_version_1909 | — | — |
| msrc | windows_10_version_2004 | — | — |
| msrc | windows_10_version_20h2 | — | — |
| msrc | windows_10_version_21h1 | — | — |
| msrc | windows_11_version_21h2 | — | — |
| msrc | windows_server_2016 | — | — |
| msrc | windows_server_2019 | — | — |
| msrc | windows_server_version_2004 | — | — |
| msrc | windows_server_version_20h2 | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N
cvelistv58.1HIGH
vendor_msrc8.1HIGH
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VulDB
Microsoft Windows up to Server 2019 Active Directory
vuldb·2026-08-11·CVSS 8.1
CVE-2021-33781 [HIGH] Microsoft Windows up to Server 2019 Active Directory
A vulnerability described as critical has been identified in Microsoft Windows up to Server 2019. Affected is an unknown function of the component Active Directory. Executing a manipulation can lead to an unknown weakness.
This vulnerability is registered as CVE-2021-33781. It is possible to launch the attack remotely. No exploit is available.
It is advisable to implement a patch to correct this issue.
GHSA
GHSA-h3q4-8mmf-5g36: Active Directory Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-33781 [HIGH] GHSA-h3q4-8mmf-5g36: Active Directory Security Feature Bypass Vulnerability
Active Directory Security Feature Bypass Vulnerability
CVEList
Azure AD Security Feature Bypass Vulnerability
cvelistv5·2021-07-14·CVSS 8.1
CVE-2021-33781 [HIGH] Azure AD Security Feature Bypass Vulnerability
Azure AD Security Feature Bypass Vulnerability
Azure AD Security Feature Bypass Vulnerability
Microsoft
Azure AD Security Feature Bypass Vulnerability
vendor_msrc·2021-07-13·CVSS 8.1
CVE-2021-33781 [HIGH] Azure AD Security Feature Bypass Vulnerability
Azure AD Security Feature Bypass Vulnerability
Windows Active Directory: Windows Active Directory
Microsoft: Microsoft
Impact: Security Feature Bypass
Exploit Status: Publicly Disclosed:Yes;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
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5006674
No detection rules found.
No public exploits indexed.
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Crowdstrike
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blogs_crowdstrike·CVSS 7.5
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2021-07-14
Published