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Microsoft vulnerabilities have grave implications for organizations of all sizes

Help Net Securityby @helpnetsecurity ()6 min read3
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Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2021-26855
+1 related CVE
Unauthenticated SSRF/RCE in Microsoft Exchange Server (ProxyLogon)
9.1
group max
100%KEVRansomwarePoC ×4
KEV
CVE-2021-31207
+1 related CVE
Security feature bypass in Microsoft Exchange Server (ProxyShell) enables webshell RCE
6.6
group max
100%KEVRansomwarePoC
KEV
CVE-2021-34473
+2 related CVEs
SSRF (CWE-918) in Microsoft Exchange Server Enabling RCE (ProxyShell)
9.1
group max
100%KEVRansomwarePoC
KEV
CVE-2021-34527
PrintNightmare: Remote Code Execution in Microsoft Windows Print Spooler
8.8100%KEVRansomwarePoC ×3
KEV
CVE-2021-36934
Local Privilege Escalation (SeriousSAM/HiveNightmare) in Microsoft Windows 10
7.867%KEV
KEV
CVE-2021-36942
Unauthenticated LSA Spoofing (PetitPotam NTLM Relay) in Microsoft Windows
7.566%KEVRansomwarePoC
KEV
CVE-2021-40444
Remote Code Execution via MSHTML Rendering Engine in Microsoft Windows/Office (CVE-2021-40444)
8.898%KEVRansomwarePoC ×2
KEV

From the original article

6 min read at helpnetsecurity.com

Microsoft software products are a connective tissue of many organizations, from online documents (creating, sharing, storing), to email and calendaring, to the operating systems that enable business operations on the front and back ends, both in the cloud and on premises. Over 1 million companies worldwide and over 731,000 companies in the U. S.

Help Net Security

By @helpnetsecurity · helpnetsecurity.com

Read the full article at Help Net Security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.