VulnerabilitycriticalExploited in the wild

62,000 Microsoft Exchange Servers potentially left unpatched

Security Affairsby @securityaffairsMar 25, 2021 · 18:03 UTC (Mar 25, 2021)2 min read2

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CVEs: CVE-2021-26855 CVE-2021-26857 CVE-2021-26858 CVE-2021-27065

Tags: cve-2021-26855 cve-2021-26857 cve-2021-26858 cve-2021-27065 vulnerability

Vulnerabilities mentioned

All

CVE	Vulnerability	CVSS	EPSS	Signals	Published
CVE-2021-26855 +3 related CVEs CVE-2021-27065 CVE-2021-26857 CVE-2021-26858	Unauthenticated SSRF/RCE in Microsoft Exchange Server (ProxyLogon)	9.1 group max	100%	KEVRansomwarePoC ×4	Mar 3, 2021 KEV Nov 3, 2021

From the original article

2 min read at securityaffairs.com

The CyberNews investigation team found 62,174 potentially vulnerable unpatched Microsoft Exchange Servers. A number of entities in the US and worldwide remain vulnerable to software bugs that were reported by Microsoft weeks ago. The CyberNews investigation team found 62,174 potentially vulnerable unpatched Microsoft Exchange Servers.

Security Affairs

By @securityaffairs · securityaffairs.com

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