CVE-2021-27065

KEV
Ransomware

Microsoft Exchange Server Remote Code Execution Vulnerability

Details

CISA date: 2021-11-03
Affected versions: Exchange Server
Summary: Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Remediation: Apply updates per vendor instructions.
Exploit info: No exploit-tagged NVD references in our cache; see the CISA KEV link below.

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Information is aggregated from multiple authoritative sources for convenience; verify with NVD and vendors before operational decisions.