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Medium severity6.5NVD Advisory· Published Nov 10, 2021· Updated Aug 19, 2026

CVE-2021-42305

CVE-2021-42305

Description

Microsoft Exchange Server Spoofing 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

2

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305nvdPatchVendor Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42305nvd

News mentions

0

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