Severity
HIGH
CVSS
8.8
EPSS
0.90388
Risk score
56.64
CISA KEV
Yes
PoC
No
Published
2021-11-10
Modified
2025-10-21
First seen
2026-08-07
Aliases
EUVD-2021-29296, GHSA-3F87-66X4-F3P7
Products
Microsoft:Exchange, Microsoft:Microsoft Exchange Server 2016 Cumulative Update 21 15.01.0 <15.01.2308.020, Microsoft:Microsoft Exchange Server 2016 Cumulative Update 22 15.0.0 <15.01.2375.017, Microsoft:Microsoft Exchange Server 2019 Cumulative Update 10 15.02.0 <15.02.0792.019, Microsoft:Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0 <15.02.0986.014
Sources