SECURITY Signal 165
Microsoft patches 974 security vulnerabilities in largest single update batch
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Illustration only Photo by iMattSmart on Unsplash
Microsoft released its largest-ever patch batch, addressing 974 security flaws in Windows and other software, including two actively exploited zero-days.
This unprecedented volume of patches strains enterprise testing and deployment workflows, while AI-driven vulnerability discovery accelerates the pace of fixes. Organizations must prioritize critical flaws amid the growing backlog of updates to mitigate active threats.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
The update includes 113 critical vulnerabilities, some allowing remote code execution with minimal user interaction.
Two zero-day flaws (CVE-2026-81963 and CVE-2026-85880) are already being exploited in the wild.
AI-assisted discovery is increasing patch volume, but most vulnerabilities remain low-risk for typical deployments.
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