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14/09/2026 10:10 am
TL;DR: Microsoft’s September Patch Tuesday delivered a record 974 CVEs, including two zero-days already being exploited, forcing teams to prioritise exposure and validation rather than volume, according to Senserva’s roundup. The practical lesson is that patch governance, pilot testing, and KEV-driven sequencing now matter more than simple update speed.
NHIMG editorial — based on content published by Senserva: Microsoft's record 974-CVE Patch Tuesday with two exploited zero-days
By the numbers:
- Microsoft published a record 974 CVEs in this Patch Tuesday cycle, including two zero-days that CISA says are already being exploited.
- Chrome 153 patched the seventh zero-day of 2026, and Google confirmed CVE-2026-87491 was being exploited in attacks.
Questions worth separating out
Q: What should security teams do first when Patch Tuesday includes exploited zero-days?
A: Start with the vulnerabilities confirmed in active exploitation, then move to systems that are internet-facing, privilege-bearing, or support authentication and administration.
Q: Why do cumulative updates create more operational risk than individual patches?
A: Cumulative updates bundle many fixes into one deployment, so a single regression can affect multiple services at once.
Q: How do you know if patch prioritisation is actually working?
A: Look for shorter time-to-remediation on KEV-listed items, fewer exceptions on high-exploitation updates, and clearer CAB decisions for deferred work.
Practitioner guidance
- Prioritise exploited and KEV-listed flaws first Build the patch queue around CISA KEV status, confirmed exploitation, and asset criticality so the team fixes the flaws most likely to be weaponised.
- Pilot large Windows updates before broad rollout Test cumulative updates on a constrained ring, with special attention to Server 2016 behaviour and auth-dependent services before organisation-wide deployment.
- Treat browser patching as endpoint identity protection Push managed browser updates alongside operating system fixes because browsers often carry SSO sessions, admin portals, and credentialed workflows.
What's in the full analysis
Senserva's full article covers the operational detail this post intentionally leaves for the source:
- The full patch list with per-KB CVE counts and the specific Windows update packages.
- The live prioritisation view across CISA KEV, EPSS, and ransomware-linked vulnerabilities.
- The product-specific patch tracker workflow used to rank Microsoft fixes by risk.
- The daily update cadence for non-Microsoft KEV additions and why they matter.
👉 Read Senserva's analysis of Microsoft’s record Patch Tuesday and exploited zero-days →
Patch Tuesday at record scale: what should teams prioritise first?
Explore further
14/09/2026 10:11 am
Exploitability, not severity, is the decisive patching signal. A record CVE count creates noise, but active exploitation and KEV status determine which flaws can become incidents first. Vulnerability management teams need a routing model that privileges evidence of abuse over raw inventory size. The practitioner conclusion is straightforward: patch queues should start with exploited weaknesses, not with the largest bundle.
A question worth separating out:
Q: What is the difference between vulnerability severity and exploitability in patching decisions?
A: Severity estimates technical impact, while exploitability reflects whether attackers are actively using the flaw or can realistically weaponise it. In practice, exploitability should drive urgency. A moderate issue being exploited now can matter more than a severe issue with no observed abuse.
👉 Read our full editorial: Microsoft's record Patch Tuesday exposes patch sequencing risks
