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Medium severity6.5NVD Advisory· Published May 11, 2021· Updated Jun 17, 2026

CVE-2021-31209

CVE-2021-31209

Description

Microsoft Exchange Server Spoofing Vulnerability

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

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_19:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*
- (no CPE)

Patches

Vulnerability mechanics

References

2

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31209nvdPatchVendor Advisory
www.zerodayinitiative.com/advisories/ZDI-21-615/nvdThird Party AdvisoryVDB Entry

News mentions

0

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