CVE-2021-31196

Microsoft Exchange Server Information Disclosure Vulnerability

Severity Score

7.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*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-2021-31206, CVE-2021-34473

Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-04-14 CVE Reserved
2021-07-14 CVE Published
2024-08-21 Exploited in Wild
2024-09-11 KEV Due Date
2025-01-28 CVE Updated
2025-03-30 EPSS Updated
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31196	2023-12-28

URL	Date	SRC

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_20		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_21		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_10		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