Description of the security update for SharePoint Server 2019: September 09, 2025 (KB5002775)

Description of the security update for SharePoint Server 2019: September 09, 2025 KB5002775 Summary Important: ​​​​​​​​​​​​​​Prior to installing this Cumulative Update, if you're running the 2013 Style Workflows, you must install the August 2025 patch for SharePoint Workflow manager to your Farm...

Description of the security update for SharePoint Enterprise Server 2016: June 11, 2024 (KB5002604)

Description of the security update for SharePoint Enterprise Server 2016: June 11, 2024 KB5002604 Summary This security update resolves a Microsoft SharePoint Server remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures...

Description of the security update for SharePoint Enterprise Server 2016: September 12, 2023 (KB5002494)

Description of the security update for SharePoint Enterprise Server 2016: September 12, 2023 KB5002494 Summary This security update resolves a Microsoft Word remote code execution vulnerability and Microsoft SharePoint Server elevation of privilege vulnerability. To learn more about the...

Description of the security update for SharePoint Server 2019: September 12, 2023 (KB5002472)

Description of the security update for SharePoint Server 2019: September 12, 2023 KB5002472 Summary This security update resolves a Microsoft SharePoint Server elevation of privilege vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures...

Description of the security update for SharePoint Server 2019: March 14, 2023 (KB5002358)

Description of the security update for SharePoint Server 2019: March 14, 2023 KB5002358 Summary This security update resolves a Microsoft SharePoint Server spoofing vulnerability. To learn more about the vulnerability, see ​​​​Microsoft Common Vulnerabilities and Exposures CVE-2023-23395. Notes:...

Cumulative Update 21 for Exchange Server 2016 (KB5003611)

Cumulative Update 21 for Exchange Server 2016 KB5003611 Important: This regularly scheduled cumulative update contains all the security fixes of the security updates in June and other previous security updates.. Cumulative Update 21 for Microsoft Exchange Server 2016 was released on June 29, 2021...

Cumulative Update 10 for Exchange Server 2019 (KB5003612)

Cumulative Update 10 for Exchange Server 2019 KB5003612 Important: This regularly scheduled cumulative update contains all the security fixes of the security updates in June and other previous security updates.. Cumulative Update 10 for Microsoft Exchange Server 2019 was released on June 29, 2021...

XLM + AMSI: New runtime defense against Excel 4.0 macro malware

We have recently expanded the integration of Antimalware Scan Interface AMSI with Office 365 to include the runtime scanning of Excel 4.0 XLM macros, to help antivirus solutions tackle the increase in attacks that use malicious XLM macros. This integration, an example of the many security feature...

Office VBA + AMSI: Parting the veil on malicious macros

As part of our continued efforts to tackle entire classes of threats, Office 365 client applications now integrate with Antimalware Scan Interface AMSI, enabling antivirus and other security solutions to scan macros and other scripts at runtime to check for malicious behavior. Macro-based threats...