CVE-2025-53786 — Microsoft Exchange_server: On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and
On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general interest of improving the security of hybrid Exchange deployments. Following further investigation, Microsoft identified specific security implications tied to the guidance and configuration steps outlined in the April announcement. Microsoft is issuing CVE-2025-53786 to document a vulnerability that CVSSv3.1 8.0 (HIGH) · EPSS 69th percentile