Exploit for CVE-2026-42897

CVE-2026-42897 - Exchange Health Checker Outbound Rewrite Rule...

Description of the security update for Microsoft Exchange Server 2019 CU15: February 10, 2026 (KB5074993)

Description of the security update for Microsoft Exchange Server 2019 CU15: February 10, 2026 KB5074993 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures CVE: CVE-2026-21527...

Description of the security update for Microsoft Exchange Server 2016 CU23: December 9, 2025 (KB5071873)

Description of the security update for Microsoft Exchange Server 2016 CU23: December 9, 2025 KB5071873 Original article content This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...

Description of the security update for Microsoft Exchange Server 2019 CU14: December 9, 2025 (KB5071874)

Description of the security update for Microsoft Exchange Server 2019 CU14: December 9, 2025 KB5071874 Original article content This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: December 9, 2025 (KB5071876)

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: December 9, 2025 KB5071876 Original article content This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...

Description of the security update for Microsoft Exchange Server 2019 CU14: October 14, 2025 (KB5066368)

Description of the security update for Microsoft Exchange Server 2019 CU14: October 14, 2025 KB5066368 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities an...

Description of the security update for Microsoft Exchange Server 2019 CU15: October 14, 2025 (KB5066367)

Description of the security update for Microsoft Exchange Server 2019 CU15: October 14, 2025 KB5066367 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities an...

Microsoft Releases Guidance on High-Severity Vulnerability (CVE-2025-53786) in Hybrid Exchange Deployments

Update 08/12/2025: CISA has updated this alert to provide clarification on identifying Exchange Servers on an organization’s networks and provided further guidance on running the Microsoft Exchange Health Checker. Update 08/07/2025: CISA issued Emergency Directive ED 25-02: Mitigate Microsoft...

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: August 12, 2025 (KB5063224)

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: August 12, 2025 KB5063224 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 (KB5063221)

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 KB5063221 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 (KB5063222)

Description of the security update for Microsoft Exchange Server 2019: August 12, 2025 KB5063222 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...

Description of the security update for Microsoft Exchange Server 2016: August 12, 2025 (KB5063223)

Description of the security update for Microsoft Exchange Server 2016: August 12, 2025 KB5063223 Original article content This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and...

Description of version 2 of the security update for Microsoft Exchange Server 2019 and 2016: November 27, 2024 (KB5049233)

Description of version 2 of the security update for Microsoft Exchange Server 2019 and 2016: November 27, 2024 KB5049233 Notice We have re-released the Exchange Server 2019 and 2016 November 12, 2024, security update SU to address the issue where Exchange Server stops processing Exchange Transpor...

Description of the security update for Microsoft Exchange Server 2019 and 2016: November 12, 2024 (KB5044062)

Description of the security update for Microsoft Exchange Server 2019 and 2016: November 12, 2024 KB5044062 Notice We have re-released the Exchange Server 2019 and 2016 November 12, 2024, security update SU to address the issue where Exchange Server stops processing Exchange Transport Rules ETR a...

Description of the security update for Microsoft Exchange Server 2019 and 2016: November 14, 2023 (KB5032146)

Description of the security update for Microsoft Exchange Server 2019 and 2016: November 14, 2023 KB5032146 Notice For Microsoft Exchange Server 2016 installations, see also KB 5032147 for additional information about issues that are fixed in this security update. This security update rollup...

Description of the security update for Microsoft Exchange Server 2016: November 14, 2023 (KB5032147)

Description of the security update for Microsoft Exchange Server 2016: November 14, 2023 KB5032147 Notice See also KB 5032146 for additional information about issues that are fixed in this security update. This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn...

Description of the security update for Microsoft Exchange Server 2019 and 2016: October 10, 2023 (KB5030877)

Description of the security update for Microsoft Exchange Server 2019 and 2016: October 10, 2023 KB5030877 This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures CVE:...

Description of the security update for Microsoft Exchange Server 2016: June 13, 2023 (KB5025903)

Description of the security update for Microsoft Exchange Server 2016: June 13, 2023 KB5025903 This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures CVE: CVE-2023-28310 -...

Virtuozzo Hybrid Infrastructure 5.0 (5.0.0-137)

In this release, Virtuozzo Hybrid Infrastructure provides a wide range of new features that enhance service providers' interoperability and help expand their services. The improvements cover compute services, object storage, security, and monitoring. Additionally, this release delivers stability...