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CVE-2021-34523CISA KEV

Microsoft Exchange Server Privilege Escalation Vulnerability

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

Product
Exchange Server
Added to KEV
3 Nov 2021
Federal remediation due
17 Nov 2021
Known ransomware use
Yes
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