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Vulnerability · Published Jul 14, 2021 · Assigned by microsoft

CVE-2021-34492Windows Certificate Spoofing Vulnerability

High 8.1

In plain English

A high-severity security flaw in Windows 10 Version 1507 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)2.5%top 15.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Windows Certificate Spoofing Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.19003
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.4530
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.2061
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.2061
Microsoft Windows 10 Version 1909 10.0.0 – before 10.0.18363.1679
Microsoft Windows 10 Version 2004 10.0.0 – before 10.0.19041.1110
Microsoft Windows 10 Version 20H2 10.0.0 – before 10.0.19042.1110
Microsoft Windows 10 Version 21H1 10.0.0 – before 10.0.19043.1110
Microsoft Windows 7 6.1.0 – before 6.1.7601.25661
Microsoft Windows 7 Service Pack 1 6.1.0 – before 6.1.7601.25661
Microsoft Windows 8.1 6.3.0 – before 6.3.9600.20069
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.25661
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.25661
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21167
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.21167
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.23409
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.23409
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.20069
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.20069
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.4530
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.4530
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.2061
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.2061
Microsoft Windows Server version 2004 10.0.0 – before 10.0.19041.1110
Microsoft Windows Server version 20H2 10.0.0 – before 10.0.19042.1110

References