October 2026 Patch Tuesday: 1,413 CVEs Include Three Zero-Days and 75 Critical Vulnerabilities
Explained
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- ConceptPatch TuesdayMicrosoft's monthly security update day, the second Tuesday of every month.
- ConceptZero-dayA flaw attackers exploit before the vendor has a fix: defenders have had zero days to patch.
- ConceptCVE · Common Vulnerabilities and ExposuresThe public ID system for vulnerabilities, such as CVE-2026-12345, so everyone means the same bug.