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CVE-2021-34470

HighCVSS 8.0/10Last modified Aug 10, 2026

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

Metrics

CVSS 3.1 8.0/10CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23	>= 15.00.0, < 15.00.1497.023
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 21	>= 15.01.0, < 15.01.2308.008
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 10	>= 15.02.0, < 15.02.0922.007

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34470
http://packetstormsecurity.com/files/163706/Microsoft-Exchange-AD-Schema-Misconfiguration-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34470Patch, Vendor Advisory

Timeline

Published: Jul 14, 2021
Last modified: Aug 10, 2026
NVD status: Modified

Related CVEs from 2021

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