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ED 25-02: Mitigate Microsoft Exchange Vulnerability August 07, 2025 This page contains a web-friendly version of the Cybersecurity and Infrastructure Security Agency’s Emergency Directive 25-02: Mitigate Microsoft Exchange Vulnerability. https://www.cisa.gov/news…

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

Last RevisedAugust 12, 2025

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.

https://www.cisa.gov/news-events/alerts/2025/08/06/microsoft-releases-guidance-high-severity-vulnerability-cve-2025-53786-hybrid-exchange-deployments

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975 viewsAug 13 at 07:51

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

Last RevisedAugust 12, 2025

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.

https://www.cisa.gov/news-events/alerts/2025/08/06/microsoft-releases-guidance-high-severity-vulnerability-cve-2025-53786-hybrid-exchange-deployments

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