GoKawiilMicrosoft's November Patch Tuesday fixes 1,093 vulnerabilities, including an Outlook zero-day
Microsoft released updates addressing 1,093 security flaws across Windows and supported software, 63 of them rated critical. One flaw, CVE-2026-124194, a spoofing bug affecting Outlook and Microsoft 365 Apps, is already being actively exploited. The release brings Microsoft's total patches issued this year to over 5,100, alongside security updates this week from Apple, Adobe, Google and Mozilla.
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The sheer volume of patches marks a sharp jump from roughly 100 per month a year ago, which Microsoft attributes to AI tools helping find and fix bugs faster. That scale could mean more undiscovered flaws are now being caught before exploitation, but it also raises the burden on IT teams to apply fixes quickly given active exploitation of the Outlook zero-day.
- Microsoft patched 1,093 vulnerabilities this month, 63 critical and 535 allowing privilege escalation.
- An actively exploited Outlook spoofing flaw, CVE-2026-124194, affects Microsoft 365 Apps and Office.
- Microsoft has issued over 5,100 patches in 2025, a sharp rise it credits partly to AI-assisted bug discovery.
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See Yubico YubiKey 5 NFC on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: krebsonsecurity.com, 2026-11-10
Published there as: “Microsoft Fixes Nearly 1,100 Security Vulnerabilities”
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