Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-28480
Key Information:
- Vendor
Microsoft
- Status
- Vendor
- CVE Published:
- 13 April 2021
Badges
What is CVE-2021-28480?
Microsoft Exchange Server Remote Code Execution Vulnerability

Human OS v1.0:
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Affected Version(s)
Microsoft Exchange Server 2013 Cumulative Update 23 x64-based Systems 15.00.0 < 15.00.1497.015
Microsoft Exchange Server 2016 Cumulative Update 19 x64-based Systems 15.01.0 < 15.01.2176.012
Microsoft Exchange Server 2016 Cumulative Update 20 x64-based Systems 15.01.0 < 15.01.2242.008
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
64% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- π‘
Public PoC available
- πΎ
Exploit known to exist
Vulnerability published
Vulnerability Reserved