CVE-2021-31196

HIGH KEV

Microsoft Exchange Server - Remote Code Execution

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-31196 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added August 21, 2024.

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

References (2)

Core 2

Scores

CVSS v3 7.2
EPSS 0.0334
EPSS Percentile 87.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable yes
Technical Impact total

Details

CISA KEV 2024-08-21
VulnCheck KEV 2022-09-14
InTheWild.io 2024-08-21
ENISA EUVD EUVD-2021-18109
Status published
Products (3)
microsoft/exchange_server 2013 cumulative_update_23
microsoft/exchange_server 2016 cumulative_update_20 (2 CPE variants)
microsoft/exchange_server 2019 cumulative_update_10 (2 CPE variants)
Published Jul 14, 2021
KEV Added Aug 21, 2024
Tracked Since Feb 18, 2026