Severity
HIGH
CVSS
7.3
EPSS
0.97502
Risk score
59.13
CISA KEV
Yes
PoC
No
Published
2021-07-14
Modified
2025-10-21
First seen
2026-08-07
Aliases
EUVD-2021-20443, GHSA-F9F4-96J3-5MVR
Products
Microsoft:Exchange Server, Microsoft:Microsoft Exchange Server 2013 Cumulative Update 23 15.00.0 <15.00.1497.015, Microsoft:Microsoft Exchange Server 2016 Cumulative Update 19 15.01.0 <15.01.2176.012, Microsoft:Microsoft Exchange Server 2016 Cumulative Update 20 15.01.0 <15.01.2242.008, Microsoft:Microsoft Exchange Server 2019 Cumulative Update 8 15.02.0 <15.02.0792.013, Microsoft:Microsoft Exchange Server 2019 Cumulative Update 9 15.02.0 <15.02.0858.010
Sources