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Critical severity9.0NVD Advisory· Published Oct 13, 2021· Updated Jun 17, 2026

CVE-2021-26427

CVE-2021-26427

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected products

6

Microsoft/Exchange Server6 versions
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*
- (no CPE)

Patches

Vulnerability mechanics

References

1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427nvdPatchVendor Advisory

News mentions

0

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