CVE-2021-34453

Published: Oct 13, 2021

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

Microsoft Exchange Server Denial of Service Vulnerability

Vendor	Product	Versions
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 11	affected `15.02.0 - < 15.02.0986.009`
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 10	affected `15.02.0 - < 15.02.0922.014`
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 21	affected `15.01.0 - < 15.01.2308.015`
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 22	affected `15.0.0 - < 15.01.2375.012`

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

x_refsource_MISC

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