CVE-2021-31196 - Vulnerability Details - OpenCVE

Microsoft Exchange Server Remote Code Execution Vulnerability

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is in the KEV database since Aug. 21, 2024.

Exploitation active

Automatable yes

Technical Impact total

Vendors	Products
Microsoft	Exchange Server

Configuration 1 [-]

OR	cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23::::::
	cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20::::::
	cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21::::::
	cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10::::::
	cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9::::::

No data.

References

Link	Providers
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31196
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31196

History

Wed, 22 Oct 2025 00:30:00 +0000

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31196

Tue, 21 Oct 2025 20:30:00 +0000

Type	Values Removed	Values Added
References	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31196

Tue, 21 Oct 2025 19:30:00 +0000

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31196

Tue, 28 Jan 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		kev `{'dateAdded': '2024-08-21'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2021-07-14T17:53:12.000Z

Updated: 2025-10-21T23:25:41.532Z

Reserved: 2021-04-14T00:00:00.000Z

Link: CVE-2021-31196

Vulnrichment

Updated: 2024-08-03T22:55:53.341Z

NVD

Status : Modified

Published: 2021-07-14T18:15:09.463

Modified: 2025-10-22T00:17:35.470

Link: CVE-2021-31196

Redhat

No data.

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