CVE-2021-31196

high Microsoft ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score
46.4%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: July 14, 2021 (1881 days ago)
Last Modified: August 10, 2026
Vendor: Microsoft
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2024-08-21
Remediation Due: 2024-09-11 (⚠ 727d overdue)

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

CWE

NVD-CWE-noinfo

Affected Products

microsoft exchange server

References

🔗 msrc.microsoft.com 🔗 portal.msrc.microsoft.com 🔗 www.cisa.gov