Tag: Microsoft Exchange Server

Here you will find all the articles with the tag: Microsoft Exchange Server.

Windows and Exchange Servers crash after March 2024 update

Windows and Exchange Servers crash after March 2024 update

The latest Windows and Exchange Server update is causing domain controllers to crash. The problems occur on Windows Server 2016, Windows Server 2022, Exchange Server 2019 and Exchange Server 2016. Several Windows administrators say they are experiencing outages on updated domain controllers. Th... Read more

date28 days ago
28,500 Microsoft Exchange servers vulnerable

28,500 Microsoft Exchange servers vulnerable

Update 20/02/2024 - 28,500 Microsoft Exchange servers have now been confirmed to be vulnerable to elevation of privilege. This puts affected organisations worldwide at significant risk, as many users are connected to Exchange for their work. The attack surface may be even larger. Indeed, threat ... Read more

date2 months ago
Researchers warn of increase in SSRF attacks on Microsoft Exchange

Researchers warn of increase in SSRF attacks on Microsoft Exchange

Bitdefender warns of an increase in cyberattacks on on-premises deployments of Microsoft Exchange Server 2013, 2016 and 2019. The security company witnessed a recent rise in ProxyNotShell and OWASSRF, two tactics for attacks on Microsoft Exchange Server. The tactics exploit two known vulnera... Read more

date1 year ago
Cybercriminals hack Microsoft Exchange servers with zero-days

Cybercriminals hack Microsoft Exchange servers with zero-days

Microsoft confirms that cybercriminals are exploiting two zero-day vulnerabilities in Exchange Server 2013, 2016 and 2019. The vulnerabilities allow cybercriminals to conduct remote code execution attacks. The bugs were discovered by GTSC. The security company published a mitigation guide. The ... Read more

date2 years ago
New SessionManager malware attacks Exchange servers

New SessionManager malware attacks Exchange servers

Kaspersky researchers discovered a new malware variant that attacks Microsoft Exchange servers. 'SessionManager' installs a backdoor on affected systems. According to the researchers, mitigation is a difficult process. Kaspersky notes that SessionManager has been active for 15 months. Some 34 s... Read more

date2 years ago
Microsoft Exchange Server won’t get a new version until 2025

Microsoft Exchange Server won’t get a new version until 2025

Microsoft Exchange Server won't get a new on-premises version until 2025. The latest version, Exchange Server 2019, will be supported throughout the coming years. This is made evident by an update in the development roadmap. Microsoft gives the roadmap to inform on the developments of Exchange ... Read more

date2 years ago
Microsoft Exchange Server hacked, what are the consequences?

Microsoft Exchange Server hacked, what are the consequences?

In the past few days, you may have seen some scary headlines. Tens of thousands of companies are at risk of being hacked because of vulnerabilities in Microsoft Exchange Server. The vulnerabilities are actively being abused. But what is really going on, and what are the risks? On March 2, 2021, ... Read more

date3 years ago