CVE-2021-26855

Published Mar 3, 2021

Last updated 9 months ago

Overview

Description
Microsoft Exchange Server Remote Code Execution Vulnerability
Source
secure@microsoft.com
NVD status
Analyzed

Social media

Hype score
Not currently trending

Risk scores

CVSS 3.1

Type
Primary
Base score
9.1
Impact score
5.2
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity
CRITICAL

CVSS 2.0

Type
Primary
Base score
7.5
Impact score
6.4
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:P/I:P/A:P

Known exploits

Data from CISA

Vulnerability name
Microsoft Exchange Server Remote Code Execution Vulnerability
Exploit added on
Nov 3, 2021
Exploit action due
Apr 16, 2021
Required action
Apply updates per vendor instructions.

Weaknesses

nvd@nist.gov
CWE-918

Configurations