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Over 29,000 Exchange Servers Vulnerable to Critical Flaw, Urgent Mitigation Needed

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Source: BleepingComputer
Over 29,000 Exchange Servers Vulnerable to Critical Flaw, Urgent Mitigation Needed
Photo: BleepingComputer
TL;DR

Over 29,000 Microsoft Exchange servers remain unpatched against a high-severity vulnerability (CVE-2025-53786) that could allow attackers to escalate privileges and compromise entire domains, prompting urgent mitigation efforts by U.S. federal agencies and warnings for organizations worldwide.

Topics:businesstechnology#cve-2025-53786#exchange-servers#federal-agencies#patching#security-vulnerability#technology
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  1. Over 29,000 Exchange servers unpatched against high-severity flaw  BleepingComputer
  2. ED 25-02: Mitigate Microsoft Exchange Vulnerability  CISA (.gov)
  3. CISA, Microsoft warn organizations of high-severity Microsoft Exchange vulnerability  CyberScoop
  4. CISA directs agencies to mitigate ‘high-severity’ Microsoft vulnerability  Federal News Network
  5. Critical flaw affects 29K Microsoft Exchange servers: US and Germany hit hardest  Cybernews

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