// For flags

CVE-2021-31195

Microsoft Exchange Server Remote Code Execution Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Microsoft Exchange Server Remote Code Execution Vulnerability

Una vulnerabilidad de Ejecución de Código Remota de Microsoft Exchange Server. Este ID de CVE es diferente de CVE-2021-31198

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-04-14 CVE Reserved
  • 2021-05-11 CVE Published
  • 2025-02-28 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-290: Authentication Bypass by Spoofing
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2013
Search vendor "Microsoft" for product "Exchange Server" and version "2013"
cumulative_update_23
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2016
Search vendor "Microsoft" for product "Exchange Server" and version "2016"
cumulative_update_19
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2016
Search vendor "Microsoft" for product "Exchange Server" and version "2016"
cumulative_update_20
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2019
Search vendor "Microsoft" for product "Exchange Server" and version "2019"
cumulative_update_8
Affected
Microsoft
Search vendor "Microsoft"
Exchange Server
Search vendor "Microsoft" for product "Exchange Server"
2019
Search vendor "Microsoft" for product "Exchange Server" and version "2019"
cumulative_update_9
Affected