Germany warns of 17K vulnerable Microsoft Exchange servers exposed online
ID: 22881a31-a720-57c0-b24e-a958021e2e8f
STIX ID: report--22881a31-a720-57c0-b24e-a958021e2e8f
Feed Name: Bleeping Computer
Threat Score
The German BSI warned that at least ~17,000 Microsoft Exchange servers in Germany are severely vulnerable—many running unsupported Exchange 2010/2013 or unpatched 2016/2019 instances—exposing them to critical flaws (including CVE-2024-21410) with reports of active exploitation; the advisory urges immediate installation of March 2024 security updates, enabling Extended Protection, and restricting OWA access (e.g., VPN or allowlists).
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