Multiple Security Updates Released for Exchange Server

Posted on Tuesday March 02, 2021  |  MSRC alerts

Today we are releasing several security updates for Microsoft Exchange Server to address vulnerabilities that have been used in limited targeted attacks. Due to the critical nature of these vulnerabilities, we recommend that customers apply the updates to affected systems immediately to protect against these exploits and to prevent future abuse across the ecosystem. The vulnerabilities affect Microsoft Exchange Server. Exchange Online is not affected. The versions affected are: Microsoft Exchange Server 2013...

 

On-Premises Exchange Server Vulnerabilities Resource Center – updated March 16, 2021

Posted on Tuesday March 02, 2021  |  MSRC alerts

MSRC / By MSRC Team / March 2, 2021 Microsoft continues to investigate the extent of the recent Exchange Server on-premises attacks. Our goal is to provide the latest threat intelligence, Indicators of Compromise (IOC)s, and guidance across our products and solutions to help the community respond, harden infrastructure, and begin to recover from this unprecedented attack. As new...

 

Multiple Security Updates Released for Exchange Server – updated March 5, 2021

Posted on Tuesday March 02, 2021  |  MSRC alerts

Today we are releasing several security updates for Microsoft Exchange Server to address vulnerabilities that have been used in limited targeted attacks. Due to the critical nature of these vulnerabilities, we recommend that customers apply the updates to affected systems immediately to protect against these exploits and to prevent future abuse across the ecosystem. The vulnerabilities affect Microsoft Exchange Server. Exchange Online is not affected. The versions affected are: Microsoft Exchange Server 2013...

 

Multiple Security Updates Released for Exchange Server – updated March 8, 2021

Posted on Tuesday March 02, 2021  |  MSRC alerts

MSRC / By MSRC Team / March 2, 2021 Note: If you are looking for specific information on patching your Exchange Servers, please scroll down to the section named Deploy updates to affected Exchange Servers. On March 2nd, we released several security updates for Microsoft Exchange Server to address vulnerabilities that are being used in ongoing attacks. Due to the critical nature of these vulnerabilities, we recommend that...

 

On-Premise Exchange Server Vulnerabilities Resource Center – updated March 16, 2021

Posted on Tuesday March 02, 2021  |  MSRC alerts

MSRC / By MSRC Team / March 2, 2021 Microsoft continues to investigate the extent of the recent Exchange Server on-premises attacks. Our goal is to provide the latest threat intelligence, Indicators of Compromise (IOC)s, and guidance across our products and solutions to help the community respond, harden infrastructure, and begin to recover from this unprecedented attack. As new...

 

Microsoft Internal Solorigate Investigation – Final Update

Posted on Thursday February 18, 2021  |  MSRC alerts

We believe the Solorigate incident is an opportunity to work with the community, to share information, strengthen defenses and respond to attacks. We have now completed our internal investigation into the activity of the actor and want to share our findings, which confirm that we found no evidence of access to production services or customer...

 

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