CVE-2026-62911 - Geek Feed

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Nearly 22,000 Microsoft Exchange servers vulnerable to hijack attacks

September 4, 2026September 4, 2026 geekfeed0Tagged Authentication, Authentication Bypass, CVE-2026-62911, Elevation of Privileges, microsoft, Microsoft Exchange, Privilege Escalation

Nearly 22,000 Microsoft Exchange servers exposed online remain unpatched against a high-severity authentication bypass vulnerability that allows attackers to hijack all user mailboxes. Tracked as CVE-2026-62911 and reported by DEVCORE Research Team’s Orange Tsai, this security flaw affects Exchange Server 2016, Exchange Server 2019, and Exchange Server Subscription Edition (SE) software. Threat actors with basic privileges on […]

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