November Patch Tuesday: Microsoft fixed a record 1,235 flaws, 66 critical. One is already exploited: CVE-2026-124194 in Outlook. Open a crafted message file and Outlook connects to the attacker's server without the usual external-content warning, handing over your NTLMv2 hash to crack offline. Classic phishing attachment, so patch Outlook first.
Fun detail: the list includes the OpenSSH "sshole" bug, because it hits Microsoft's own Linux, Mariner.


BleepingComputer
Microsoft November 2026 Patch Tuesday fixes 1,235 flaws, Outlook zero-day
Today is Microsoft's November 2026 Patch Tuesday, with security updates addressing a record-breaking 1,235 flaws, including one actively explo...





