Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities

Summary: Microsoft's October 2026 security update covers 1,415 vulnerabilities, 85 of them rated critical, and one of them - CVE-2026-96951, a Windows Shell security feature bypass involving command injection with a CVSS score of 8.8 - has been exploited in the wild. Of the 85 critical flaws, 67 are remote code execution, including CVE-2026-100202 in Windows Message Queuing Queue Manager and CVE-2026-100219 and CVE-2026-105016 in Microsoft QUIC, each scoring 9.8, while Microsoft rates exploitation of the Active Directory Domain Services and Exchange Server RCEs (both 8.1) as more likely.
What you should know: One flaw is already being exploited and Microsoft flags two more - in Active Directory Domain Services and Exchange Server - as more likely to be attacked, so the 1,415-item patch list is not a backlog you can work through at your own pace.

Read the original at Cisco Talos ↗

Topics: Vulnerabilities & Patching
Mentions: CVE-2026-100202 CVE-2026-100209 CVE-2026-100210 CVE-2026-100211 CVE-2026-100215 CVE-2026-100219 CVE-2026-100220 CVE-2026-102211 CVE-2026-102214 CVE-2026-105016 CVE-2026-105733 CVE-2026-108130 CVE-2026-108399 CVE-2026-108471 CVE-2026-70229 CVE-2026-70571 CVE-2026-88074 CVE-2026-96914 CVE-2026-96951 CVE-2026-97739 CVE-2026-97741 CVE-2026-97742 CVE-2026-97745 CVE-2026-97753 CVE-2026-97755 CVE-2026-97756 CVE-2026-97758 CVE-2026-97759 CVE-2026-97761 CVE-2026-97765 CVE-2026-97767 CVE-2026-97776 CVE-2026-97778 CVE-2026-97780
Related: Microsoft and Adobe Patch Tuesday, October 2026 Security Update Review | Qualys Cyber Risks ·
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