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)

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

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

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

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

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

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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 2019: August 12, 2025 (KB5063222)

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

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

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

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

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

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

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

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

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

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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...