Microsoft Exchange Server Remote Code Execution Vulnerability
https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective
https://www.tenable.com/blog/how-to-identify-compromised-microsoft-exchange-server-assets-using-tenable
https://www.tenable.com/blog/finding-proxylogon-and-related-microsoft-exchange-vulnerabilities-how-tenable-can-help
https://www.tenable.com/blog/cve-2021-26855-cve-2021-26857-cve-2021-26858-cve-2021-27065-four-microsoft-exchange-server-zero-day-vulnerabilities
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26858
Source: Mitre, NVD
Published: 2021-03-03
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High