CVE-2023-21709

nvd nist

Published: Aug 8, 2023Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

Affected (35)

Products: Microsoft: Exchange Server

Microsoft

1 product

Exchange Server

Configuration A

35 vulnerable

Vulnerable Software	Affected Versions
Microsoft Exchange Server	Version 2016
Microsoft Exchange Server	Version 2016 cumulative_update_10
Microsoft Exchange Server	Version 2016 cumulative_update_11
Microsoft Exchange Server	Version 2016 cumulative_update_12
Microsoft Exchange Server	Version 2016 cumulative_update_13
Microsoft Exchange Server	Version 2016 cumulative_update_14
Microsoft Exchange Server	Version 2016 cumulative_update_15
Microsoft Exchange Server	Version 2016 cumulative_update_16
Microsoft Exchange Server	Version 2016 cumulative_update_17
Microsoft Exchange Server	Version 2016 cumulative_update_18
Microsoft Exchange Server	Version 2016 cumulative_update_19
Microsoft Exchange Server	Version 2016 cumulative_update_1
Microsoft Exchange Server	Version 2016 cumulative_update_20
Microsoft Exchange Server	Version 2016 cumulative_update_21
Microsoft Exchange Server	Version 2016 cumulative_update_22
Microsoft Exchange Server	Version 2016 cumulative_update_2
Microsoft Exchange Server	Version 2016 cumulative_update_3
Microsoft Exchange Server	Version 2016 cumulative_update_4
Microsoft Exchange Server	Version 2016 cumulative_update_5
Microsoft Exchange Server	Version 2016 cumulative_update_6
Microsoft Exchange Server	Version 2016 cumulative_update_7
Microsoft Exchange Server	Version 2016 cumulative_update_8
Microsoft Exchange Server	Version 2016 cumulative_update_9
Microsoft Exchange Server	Version 2019
Microsoft Exchange Server	Version 2019 cumulative_update_10
Microsoft Exchange Server	Version 2019 cumulative_update_11
Microsoft Exchange Server	Version 2019 cumulative_update_1
Microsoft Exchange Server	Version 2019 cumulative_update_2
Microsoft Exchange Server	Version 2019 cumulative_update_3
Microsoft Exchange Server	Version 2019 cumulative_update_4
Microsoft Exchange Server	Version 2019 cumulative_update_5
Microsoft Exchange Server	Version 2019 cumulative_update_6
Microsoft Exchange Server	Version 2019 cumulative_update_7
Microsoft Exchange Server	Version 2019 cumulative_update_8
Microsoft Exchange Server	Version 2019 cumulative_update_9

Related CWEs

CWE-307

Improper Restriction of Excessive Authentication Attempts

The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.

References (2)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21709

Source: secure@microsoft.com

PatchVendor Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21709

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.