CVE-2021-26855
published 2021-03-03CVE-2021-26855: Microsoft Exchange Server Remote Code Execution Vulnerability
critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected
49 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | exchange_server | — | — |
| microsoft | exchange_server | — | — |
| microsoft | exchange_server | — | — |
| microsoft | microsoft_exchange_server_2013_cumulative_update_21 | >= 15.00.0 < publication | publication |
| microsoft | microsoft_exchange_server_2013_cumulative_update_22 | >= 15.00.0 < publication | publication |
| microsoft | microsoft_exchange_server_2013_cumulative_update_23 | >= 15.00.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_10 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_11 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_12 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_13 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_14 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_15 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_16 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_17 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_18 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_19 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_8 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2016_cumulative_update_9 | >= 15.01.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_1 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_2 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_3 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_4 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_5 | >= 15.02.0 < publication | publication |
| microsoft | microsoft_exchange_server_2019_cumulative_update_6 | >= 15.02.0 < publication | publication |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck9.1CRITICAL
cisa9.8CRITICAL