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11 May 2021

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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Medium 6.6

CVE-2021-31207 Exploited · Ransomware Public exploit EPSS 100%

Microsoft Exchange Server Security Feature Bypass Vulnerability

Microsoft Exchange Server Security Feature Bypass Vulnerability

Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2019 Cumulative Update 8 Microsoft Exchange Server 2016 Cumulative Update 19

May 11, 2021
KEV Nov 3, 2021
Critical 9.8

CVE-2021-31166 Exploited Public exploit EPSS 100%

HTTP Protocol Stack Remote Code Execution Vulnerability

HTTP Protocol Stack Remote Code Execution Vulnerability

Microsoft Windows 10 Version 20H2 Windows Server version 20H2 Windows 10 Version 2004 Windows

May 11, 2021
KEV Apr 6, 2022