Wire · technology
Microsoft Exchange Vulnerability: What Admins Should Do
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Fusion42 · 4 September 2026 · Fusion42 review
Microsoft patched a critical authentication bypass vulnerability CVE-2026-62911 affecting Exchange Server 2016, 2019, and Subscription Edition, but over 22,000 internet-exposed servers remain unpatched globally, increasing risk amid rapidly accelerating exploit timelines driven by AI. The article recommends urgent patching, limiting internet exposure, and adopting zero trust access solutions like Zscaler Private Access to protect Exchange servers from attacks.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
Exposing Exchange servers to the internet is a critical liability that you can no longer afford. Shift immediately to zero trust access or isolate Exchange to internal networks to close the attack window AI now exploits in minutes.
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1 source · 3 Sep 2026
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