CVE-2021-31209
Microsoft Exchange Server Spoofing Vulnerability
CVE-2021-31209 is fixed in 5 products on 1 platform, first by KB5003435, released May 11, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.5
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0263
85th percentile
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Microsoft Exchange Server 2013 Cumulative Update 23 | KB5003435 | May 11, 2021 | |
| Microsoft Exchange Server 2016 Cumulative Update 19 | KB5003435 | May 11, 2021 | |
| Microsoft Exchange Server 2016 Cumulative Update 20 | KB5003435 | May 11, 2021 | |
| Microsoft Exchange Server 2019 Cumulative Update 8 | KB5003435 | May 11, 2021 | |
| Microsoft Exchange Server 2019 Cumulative Update 9 | KB5003435 | May 11, 2021 | |
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