November 2026 Patch Tuesday: 63 Critical Microsoft fixes, plus an Outlook zero day that allows theft of hashed credentials

A currently exploited zero-day vulnerability that can let attackers steal hashed Outlook NTLM credentials is among the 1,094 holes Microsoft fixed in its November Patch Tuesday releases. Although rated as only moderate in severity, with a CVSS score of 6.5, Windows administrators need to address CVE-2026-124194 immediately because threat actors are already attacking it. “Don’t let the low score fool you,” said Nick C…

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USN-9040-1: Linux kernel (Low Latency NVIDIA) vulnerabilities

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CSO Online

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The Hacker News

Microsoft Patches 1,259 Flaws, Including Exploited Outlook Bug That May Expose NTLMv2 Hashes

Microsoft on Tuesday released patches for a total of 1,259 vulnerabilities spanning its software portfolio, the second consecutive month where the patch volume has exceeded 1,000 flaws. These cover 726 flaws in Windows, 174 in Office, 61 in Developer Tools, 59 in SQL Server, 53 in Developer Tools, and 27 in SharePoint Server. The patches also include 165 non-Microsoft-issued CVE identifiers.