Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2021-26427

Microsoft Exchange Server Remote Code Execution Vulnerability

  • Published: Oct 13, 2021
  • Updated: May 4, 2025
  • CVE: CVE-2021-26427
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5.8
  • AV:A/AC:L/Au:N/C:P/I:P/A:P

No CWE or OWASP classifications available.

Software From Fixed in
microsoft / exchange_server 2013-cumulative_update_23 2013-cumulative_update_23.x
microsoft / exchange_server 2016-cumulative_update_21 2016-cumulative_update_21.x
microsoft / exchange_server 2019-cumulative_update_10 2019-cumulative_update_10.x
microsoft / exchange_server 2016-cumulative_update_22 2016-cumulative_update_22.x
microsoft / exchange_server 2019-cumulative_update_11 2019-cumulative_update_11.x