CVE-2021-26427

critical

Description

Microsoft Exchange Server Remote Code Execution Vulnerability

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427

Details

Source: MITRE

Published: 2021-10-13

Updated: 2021-10-19

Risk Information

CVSS v2

Base Score: 5.8

Vector: AV:A/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 6.5

Severity: MEDIUM

CVSS v3

Base Score: 9.6

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 2.8

Severity: CRITICAL