Vulnerability Database

296,733

Total vulnerabilities in the database

CVE-2021-31207

Microsoft Exchange Server Security Feature Bypass Vulnerability

Published: May 11, 2021
Updated: May 9, 2024
CVE: CVE-2021-31207
Severity: Medium
Exploit:

CVSS v2:

Severity: Medium
Score: 6.5
AV:N/AC:L/Au:S/C:P/I:P/A:P

CWEs:

OWASP TOP 10:

A5 - Broken Access Control

Affected Software
References

Software	From	Fixed in
microsoft / exchange_server	2013-cumulative_update_23	2013-cumulative_update_23.x
microsoft / exchange_server	2019-cumulative_update_8	2019-cumulative_update_8.x
microsoft / exchange_server	2016-cumulative_update_19	2016-cumulative_update_19.x
microsoft / exchange_server	2016-cumulative_update_20	2016-cumulative_update_20.x
microsoft / exchange_server	2019-cumulative_update_9	2019-cumulative_update_9.x

Deep Security Visibility Without the Complexity

SynScan provides clear, real-time security insights so you can monitor your attack surface, spot risks early, and act fast—without extra complexity.

No setup fees
5-min deployment
Cancel anytime