{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2021-31962", "ASSIGNER": "secure@microsoft.com", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "Kerberos AppContainer Security Feature Bypass Vulnerability" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Security Feature Bypass" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Microsoft", "product": { "product_data": [ { "product_name": "Windows 10 Version 1809", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.17763.1999" } ] } }, { "product_name": "Windows Server 2019", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.17763.1999" } ] } }, { "product_name": "Windows Server 2019 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.17763.1999" } ] } }, { "product_name": "Windows 10 Version 1909", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.18363.1621" } ] } }, { "product_name": "Windows 10 Version 21H1", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.19043.1052" } ] } }, { "product_name": "Windows 10 Version 2004", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.19041.1052" } ] } }, { "product_name": "Windows Server version 2004", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.19041.1052" } ] } }, { "product_name": "Windows 10 Version 20H2", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.19042.1052" } ] } }, { "product_name": "Windows Server version 20H2", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.19042.1052" } ] } }, { "product_name": "Windows 10 Version 1507", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.10240.18967" } ] } }, { "product_name": "Windows 10 Version 1607", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.14393.4467" } ] } }, { "product_name": "Windows Server 2016", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.14393.4467" } ] } }, { "product_name": "Windows Server 2016 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "10.0.0", "version_value": "10.0.14393.4467" } ] } }, { "product_name": "Windows 7", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.1.0", "version_value": "6.1.7601.25632" } ] } }, { "product_name": "Windows 7 Service Pack 1", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.1.0", "version_value": "6.1.7601.25632" } ] } }, { "product_name": "Windows 8.1", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.3.0", "version_value": "6.3.9600.20045" } ] } }, { "product_name": "Windows Server 2008 Service Pack 2", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.0.0", "version_value": "6.0.6003.21137" } ] } }, { "product_name": "Windows Server 2008 Service Pack 2 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.0.0", "version_value": "6.0.6003.21137" } ] } }, { "product_name": "Windows Server 2008 Service Pack 2", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.0.0", "version_value": "6.0.6003.21137" } ] } }, { "product_name": "Windows Server 2008 R2 Service Pack 1", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.1.0", "version_value": "6.1.7601.25632" } ] } }, { "product_name": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.0.0", "version_value": "6.1.7601.25632" } ] } }, { "product_name": "Windows Server 2012", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.2.0", "version_value": "6.2.9200.23372" } ] } }, { "product_name": "Windows Server 2012 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.2.0", "version_value": "6.2.9200.23372" } ] } }, { "product_name": "Windows Server 2012 R2", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.3.0", "version_value": "6.3.9600.20045" } ] } }, { "product_name": "Windows Server 2012 R2 (Server Core installation)", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.3.0", "version_value": "6.3.9600.20045" } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31962", "refsource": "MISC", "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31962" }, { "url": "http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.html", "refsource": "MISC", "name": "http://packetstormsecurity.com/files/163206/Windows-Kerberos-AppContainer-Enterprise-Authentication-Capability-Bypass.html" } ] }, "impact": { "cvss": [ { "version": "3.1", "baseSeverity": "CRITICAL", "baseScore": 9.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C" } ] } }