Nearly 22,000 Microsoft Exchange servers vulnerable to hijack attacks
Roughly 22,000 Exchange servers remain exposed to a high-severity authentication bypass enabling full mailbox hijack—a stark reminder that on-prem email infrastructure continues to be a top attack surface for European enterprises.
Summary written by editorial AI · Source link below
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. [...]
Editorial Analysis
On-premises Exchange remains one of the most exploited enterprise assets; unpatched auth-bypass flaws expose organisations to mass email compromise and regulatory scrutiny.
Audit all Exchange deployments for this vulnerability, prioritise patching, and evaluate accelerated cloud-migration timelines.
Thousands of Exchange servers worldwide remain vulnerable to full mailbox takeover—confirm your organisation is patched.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at BleepingComputer in a new tab.
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