Categories alerts ProxyShell Attacks Pummel Unpatched Exchange Servers Post author By admin Post date August 23, 2021 CISA is warning about a surge of ProxyShell attacks, as Huntress discovered 140 webshells launched against 1,900 unpatched Microsoft Exchange servers. Share this:FacebookX ← Vulnerability Summary for the Week of August 16, 2021 → CISA Releases Five Pulse Secure-Related MARs