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2026-09-14 · Source：Computerworld
Microsoft's largest 2026 release fixes 963 vulnerabilities, including two already exploited, with priority guidance centered on Windows, Office and SQL Server.
Microsoft's September security rollout is the company's biggest of 2026, addressing 963 CVEs in a single release and carrying a clear prioritization message for administrators: put Windows, Office and SQL Server at the top of the queue. The volume alone makes this month's Patch Tuesday the standout of Microsoft's patching year, and the guidance accompanying the release is unambiguous about where remediation effort should land first.
Two vulnerabilities in the batch are already under active exploitation: CVE-2026-81963, located in the Windows Update Stack, and CVE-2026-85880, found in the Advanced Local Procedure Call. Nothing in this release was publicly disclosed ahead of the patch. Readiness recommends a Patch Now schedule for Windows, Office, SQL Server and the developer tools included in the update, aligning deployment priorities with Microsoft's emphasis for the month.
The cadence behind the release is long-established. Patch Tuesday falls on the second Tuesday of each month, when Microsoft distributes security updates and patches spanning its software portfolio — everything from Windows to Office to SQL Server, along with developer tools and browsers. The fixed schedule was created to consolidate patch distribution into a predictable rhythm, simplifying update management for end users and the IT system administrators responsible for keeping systems current. Tuesday has been synonymous with security since long before Taco Tuesday entered the pop-culture vernacular, and for anyone in the tech world it remains so. Like tacos, Patch Tuesday is here to stay.
Computerworld has tracked Patch Tuesday releases for years as part of its commitment to supplying critical information to the IT industry, and keeps a rolling list of recent patches updated each month. Readers who missed a recent announcement can review the latest six months of Microsoft updates in one collection.
Mots-clés: Microsoft · Patch Tuesday · Windows · SQL Server · Office · Cybersecurity
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