CVEvulnerability

CVE-2021-31196

7.2 HIGH Known exploited Published 2021-07-14 Modified 2026-08-10 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Exchange Server Information Disclosure Vulnerability — Microsoft Exchange Server

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

Added to KEV
2024-08-21
Remediation due
2024-09-11
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-31196; https://nvd.nist.gov/vuln/detail/CVE-2021-31196
Status
Analyzed
Published
2021-07-14
Last modified
2026-08-10
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected configurations

• microsoft exchange server 2013 • microsoft exchange server 2016 • microsoft exchange server 2019

References