CVE-2021-42305
medium
Microsoft CVSS v3 Base Score
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS Score
8.1%
Exploitation probability in 30 days
Top 6% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Published: November 10, 2021 (1763 days ago)
Last Modified: August 19, 2026
Vendor: Microsoft
Source: NVD
Vulnerability Report
Generated by CyberWatcher
Description
Microsoft Exchange Server Spoofing Vulnerability
CWE
NVD-CWE-noinfoAffected Products
microsoft exchange server