Microsoft Patch Tuesday fixes Outlook flaw already under attack

Summary by Cyber Security News11 Nov 2026, 12:25 CET

About this summary. This is a short excerpt from the description that Malwarebytes Labs published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://www.malwarebytes.com/blog/bugs/2026/11/microsoft-patch-tuesday-fixes-outlook-flaw-already-under-attack

Microsoft’s November Patch Tuesday fixes more than 1,000 Microsoft vulnerabilities, including an Outlook flaw that attackers are already exploiting to steal authentication information. The release also fixes 48 critical remote code execution (RCE) vulnerabilities that could allow attackers to run code on affected machines, in some cases without user interaction.

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