CVE-2021-34470

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVE-2021-34470 is fixed in 3 products on 1 platform, first by KB5004778, released July 13, 2021. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.0
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0438
91st percentile

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Exchange Server 2013 Cumulative Update 23 KB5004778 Jul 13, 2021
Microsoft Exchange Server 2016 Cumulative Update 21 KB5003611 Jul 13, 2021
Microsoft Exchange Server 2019 Cumulative Update 10 KB5003612 Jul 13, 2021

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