Microsoft released March 2022 security updates to fix found vulnerabilities in their software products and features that include, but not limited to:

• Microsoft Exchange Server: 2013, 2016 and 2019

• Windows Server: 2012, 2016, 2019, 2022

• Windows OS: 10 and 11

• Microsoft Office

The released security updates fix about 71 vulnerabilities, which include 3 rated as critical and 68 as important vulnerabilities. It includes:

• CVE-2022-23277: Microsoft Exchange Server Remote Code Execution Vulnerability

• CVE-2022-21990: Remote Desktop Client Remote Code Execution Vulnerability

Security Risks

If the identified vulnerabilities in Microsoft products are not patched, authenticated attackers can gain control of vulnerable systems and run malicious code with elevated privileges.

For the full list of security patches released by Microsoft, please refer to Microsoft Security Update Guide. 

Recommended Actions

The National Cyber Security Authority (NCSA) recommends users and system administrators to:

1. apply the latest security patches, as soon as possible, to prevent unauthorized control over unpatched systems;

2. upgrade immediately to the latest supported version of installed Microsoft software in order to continue receiving technical support and security patches.

The following Microsoft software products reached their end-of-life and need to be upgraded immediately:

• Internet Explorer;

• Windows XP, 8 and 7;

• Exchange Server 2010;

• and Windows Server 2008, 2008 RE;

   3.  Before any update task, ensure you have backup for your data.

For further information and support, please contact the National Cyber Security Authority (NCSA) by email to rwcsirt@ncsa.gov.rw or call us on 9009

References

Security Update Guide