CVE-2021-34473

critical

Description

Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-31196, CVE-2021-31206.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473

https://www.zerodayinitiative.com/advisories/ZDI-21-821/

http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html

Details

Source: MITRE

Published: 2021-07-14

Updated: 2022-07-12

Type: CWE-918

Risk Information

CVSS v2

Base Score: 10

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

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL