Microsoft Addresses Zero-Days, but Exchange Server Exploit Chain Remains Unpatched

The computing giant didn't fix ProxyNotLogon in October's Patch Tuesday, but it disclosed a rare 10-out-of-10 bug and patched two other zero-days, including one being exploited.

source https://www.darkreading.com/vulnerabilities-threats/microsoft-zero-days-exchange-server-exploit-chain-remains-unpatched