CVE Vulnerabilities

CVE-2021-26858

Published: Mar 03, 2021 | Modified: Oct 30, 2025
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
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Microsoft Exchange Server Remote Code Execution Vulnerability

Affected Software

NameVendorStart VersionEnd Version
Exchange_serverMicrosoft2010-sp3 (including)2010-sp3 (including)
Exchange_serverMicrosoft2013-cumulative_update_22 (including)2013-cumulative_update_22 (including)
Exchange_serverMicrosoft2013-cumulative_update_23 (including)2013-cumulative_update_23 (including)
Exchange_serverMicrosoft2013-sp1 (including)2013-sp1 (including)
Exchange_serverMicrosoft2016-cumulative_update_10 (including)2016-cumulative_update_10 (including)
Exchange_serverMicrosoft2016-cumulative_update_11 (including)2016-cumulative_update_11 (including)
Exchange_serverMicrosoft2016-cumulative_update_12 (including)2016-cumulative_update_12 (including)
Exchange_serverMicrosoft2016-cumulative_update_13 (including)2016-cumulative_update_13 (including)
Exchange_serverMicrosoft2016-cumulative_update_14 (including)2016-cumulative_update_14 (including)
Exchange_serverMicrosoft2016-cumulative_update_15 (including)2016-cumulative_update_15 (including)
Exchange_serverMicrosoft2016-cumulative_update_16 (including)2016-cumulative_update_16 (including)
Exchange_serverMicrosoft2016-cumulative_update_17 (including)2016-cumulative_update_17 (including)
Exchange_serverMicrosoft2016-cumulative_update_18 (including)2016-cumulative_update_18 (including)
Exchange_serverMicrosoft2016-cumulative_update_19 (including)2016-cumulative_update_19 (including)
Exchange_serverMicrosoft2016-cumulative_update_8 (including)2016-cumulative_update_8 (including)
Exchange_serverMicrosoft2016-cumulative_update_9 (including)2016-cumulative_update_9 (including)
Exchange_serverMicrosoft2019 (including)2019 (including)
Exchange_serverMicrosoft2019-cumulative_update_1 (including)2019-cumulative_update_1 (including)
Exchange_serverMicrosoft2019-cumulative_update_2 (including)2019-cumulative_update_2 (including)
Exchange_serverMicrosoft2019-cumulative_update_3 (including)2019-cumulative_update_3 (including)
Exchange_serverMicrosoft2019-cumulative_update_4 (including)2019-cumulative_update_4 (including)
Exchange_serverMicrosoft2019-cumulative_update_5 (including)2019-cumulative_update_5 (including)
Exchange_serverMicrosoft2019-cumulative_update_6 (including)2019-cumulative_update_6 (including)
Exchange_serverMicrosoft2019-cumulative_update_7 (including)2019-cumulative_update_7 (including)
Exchange_serverMicrosoft2019-cumulative_update_8 (including)2019-cumulative_update_8 (including)

References