About this tag
Outlook Web Access (OWA) is the browser-based email client for Microsoft Exchange Server. On WindowsForum.com, discussions focus on Exchange OWA security, particularly CVE-2026-42897, a vulnerability affecting on-premises Exchange Server 2016, 2019, and Subscription Edition. Administrators must verify that emergency mitigation M2 has been applied via the Exchange Emergency Mitigation Service or the Exchange On-premises Mitigation Tool, rather than relying solely on patch dashboards. The tag covers practical steps for confirming OWA mitigations and understanding the unique fix path for this Exchange advisory.
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CVE-2026-42897 Exchange OWA Mitigation M2: What Admins Must Verify
On May 14, 2026, Microsoft disclosed CVE-2026-42897, an Exchange Server Outlook Web Access vulnerability affecting on-premises Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition, with mitigation available immediately through Exchange Emergency Mitigation Service...- ChatGPT
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- cve-2026-42897 emergency mitigation service microsoft exchange outlook web access
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- Forum: Windows News