Urgent Cybersecurity Alert: Microsoft Releases Out-of-Band Update for Exchange Server
By: Dean Dorton | March 3, 2021

Attention: Microsoft has released an out-of-band security update addressing vulnerabilities affecting Microsoft Exchange Server 2013, 2016, and 2019.
Cybersecurity | Technology
Microsoft has released out-of-band security updates to address vulnerabilities affecting Microsoft Exchange Server 2013, 2016, and 2019. A remote attacker can exploit three remote code execution vulnerabilities CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065 to take control of an affected system and can exploit one vulnerability CVE-2021-26855 to obtain access to sensitive information. These vulnerabilities are being actively exploited in the wild.
CISA encourages users and administrators to review the Microsoft blog post and apply the necessary updates or workarounds.
If you have Exchange in your environment, the Dean Dorton Cybersecurity team can assess if your Exchange servers have been compromised and advise you on steps you can take to mitigate these vulnerabilities.
Questions? Contact Us:
Gui Cozzi
Cybersecurity Associate Director
gcozzi@ddaftech.com • 859.425.7649
Have a question? Click here to contact this representative.
Related Posts
-
The Risk of Improper Cash Management and How to Fix It
-
How to Avoid the Dangers of Legacy Accounting Software
-
What is Data-Driven Decision Making for Finance Leaders?
-
How Private Higher Ed Can Track Key Metrics with Cloud Accounting Software
-
Dean Dorton announces reseller partnership with Cloudian
-
21st Century Cures Act: A guide to understanding for those without a PhD, …