Microsoft Discloses Exchange Server Flaw Enabling Silent Cloud Access in Hybrid Setups The Hacker [email protected] (The Hacker News)

August 7, 2025

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions.
The vulnerability, tracked as CVE-2025-53786, carries a CVSS score of 8.0. Dirk-jan Mollema with Outsider Security has been acknowledged for reporting the bug.
“In an Exchange hybrid deployment, an Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elevated privileges under certain conditions.
The vulnerability, tracked as CVE-2025-53786, carries a CVSS score of 8.0. Dirk-jan Mollema with Outsider Security has been acknowledged for reporting the bug.
“In an Exchange hybrid deployment, an 

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Tech Jacks
Derrick Jackson is a IT Security Professional with over 10 years of experience in Cybersecurity, Risk, & Compliance and over 15 Years of Experience in Enterprise Information Technology

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