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Exchange

7 articles

Microsoft Exchange on-premises hardening recommendations
  • email

Hardening Exchange servers

Here’s how to mitigate the risks of targeted attacks on your organization’s mail servers.

  • Stan Kaminsky

  • November 27, 2025

Spoofing via CVE-2024-49040
  • email

How to stop exploitation of CVE-2024-49040

The patch that fixes CVE-2024-49040 in Microsoft Exchange is temporarily unavailable. We’ve implemented heuristics that detect attempts to exploit it.

  • Roman Dedenok

  • November 26, 2024

Microsoft will block e-mail from outdated Exchange servers
  • e-mail

Microsoft planning to block outdated Exchange servers

Microsoft plans to throttle and block email from vulnerable Exchange servers to Exchange Online.

  • Editorial Team

  • March 30, 2023

DogWalk and several vulnerabilities in Exchange
  • vulnerabilities

DogWalk and other vulnerabilities

Microsoft has released patches for more than 140 vulnerabilities, some of which need to be closed as soon as possible.

  • Editorial Team

  • August 10, 2022

Microsoft patches more than a 100 vulnerabilities in Windows 10 and 11, Windows Server 2019 and 2022, Exchange Server, Office, and Edge browser
  • vulnerabilities

Another year, another Tuesday

Microsoft patches more than a 100 vulnerabilities in Windows 10 and 11, Windows Server 2019 and 2022, Exchange Server, Office, and Edge browser.

  • Editorial Team

  • January 13, 2022

  • web applications

OWOWA malicious IIS module

The malicious Internet Information Services module makes Outlook on the web a cybercriminal tool.

  • Kaspersky Team

  • December 14, 2021

Unknown attackers exploit four dangerous vulnerabilities in Microsoft Exchange to steal confidential data. Install the patch ASAP
  • vulnerabilities

Massively exploited vulnerabilities in MS Exchange Server

Attackers exploit four dangerous vulnerabilities in Microsoft Exchange to get a foothold in the corporate network.

  • Hugh Aver

  • March 9, 2021

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