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CVE-2021-26427

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CVE-2021-26427

Published: Oct 13, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

9.0

CRITICAL

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

VendorProductVersions

Microsoft

Microsoft Exchange Server 2016 Cumulative Update 22

affected
15.0.0 - < 15.01.2375.012

Microsoft

Microsoft Exchange Server 2019 Cumulative Update 11

affected
15.02.0 - < 15.02.0986.009

Microsoft

Microsoft Exchange Server 2013 Cumulative Update 23

affected
15.00.0 - < 15.00.1497.024

Microsoft

Microsoft Exchange Server 2016 Cumulative Update 21

affected
15.01.0 - < 15.01.2308.015

Microsoft

Microsoft Exchange Server 2019 Cumulative Update 10

affected
15.02.0 - < 15.02.0922.014

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

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