QID 50111

Date Published: 2021-05-12

QID 50111: Microsoft Exchange Server Multiple Vulnerabilities - May 2021

Microsoft Exchange Server is prone to multiple vulnerabilities:

Microsoft Exchange Server Spoofing Vulnerability
Microsoft Exchange Server Security Feature Bypass Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability

KB Articles associated with this update are: KB5003435

Affected Versions:
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 19
Microsoft Exchange Server 2016 Cumulative Update 20
Microsoft Exchange Server 2019 Cumulative Update 8
Microsoft Exchange Server 2019 Cumulative Update 9

QID Detection Logic (authenticated):
The QID checks for the version of file Exsetup.exe.

Successful exploitation allows attackers to execute remote code.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as High - 6.8 severity.

Solution

Customers are advised to refer to KB5000978, KB5000871 for information pertaining to this vulnerability.

Vendor References

KB5003435 - support.microsoft.com/help/5003435

CVEs related to QID 50111

CVE-2021-31209 | CVE-2021-31207 | CVE-2021-31198 | CVE-2021-31195 |

Software Advisories

Advisory ID	Software	Component	Link
KB5003435			support.microsoft.com/help/5003435

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