CVE-2021-33779 : Windows AD FS Security Feature Bypass Vulnerability

Windows AD FS Security Feature Bypass Vulnerability

Published 2021-07-14 18:15:11

Updated 2023-12-28 23:15:23

View at NVD, CVE.org

Products affected by CVE-2021-33779

Microsoft » Windows Server 2016 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: 20h2
cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2016 » Version: 2004
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2019 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 27 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:N	8.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N	1.2	5.2	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None
8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	2.8	5.2	Microsoft Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: None

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33779

CVE-2021-33779 - Security Update Guide - Microsoft - Windows ADFS Security Feature Bypass Vulnerability
Patch;Vendor Advisory

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