TL;DR: September 2026 brought 995 Microsoft patches, 119 critical vulnerabilities and two actively exploited zero-days, according to Action1, but the real issue is that discovery and exploitation are outpacing the capacity to assess, prioritise and safely remediate them. Risk-based remediation now matters more than calendar-driven patch cycles.
Editorial analysis by NHI Mgmt Group, based on content published by Action1: “Nearly 1,000 Patches in a Month: Why the Old Patching Model Is Breaking Down”.
By the numbers:
- September 2026 delivered 995 Microsoft patches, including 119 Critical vulnerabilities and two actively exploited zero-days, according to Action1.
- CrowdStrike reported that 88% of exploitation involving vulnerabilities with public proof-of-concept code occurred within 48 hours of PoC release, according to Action1.
Key questions
Q: What breaks when organisations rely on calendar-based patching for high-volume releases?
A: Calendar-based patching breaks when vulnerability disclosure and exploitation move faster than the next maintenance window.
A: A software flaw becomes more dangerous when the impacted system can reach privileged accounts, tokens, or secrets stores, because attackers can convert one foothold into broader access.
Q: What are the warning signs that patch prioritisation is failing?
A: The clearest signs are a backlog dominated by critical flaws, repeated exceptions for internet-facing assets, and remediation orders that ignore where privileged data or admin reach actually sits.
Practitioner guidance
- Define risk-based remediation tiers Classify assets by exposure, business criticality and privilege so that patch urgency reflects blast radius rather than release size alone.
- Separate identity systems from standard maintenance queues Create a distinct approval path for identity infrastructure, privileged platforms and systems whose compromise would expand access across the environment.
- Measure remediation latency in three points Track the time from disclosure to environmental identification, from identification to decision, and from decision to mitigation or patch.
Bottom line: Record patch volume is only part of the problem, because the harder issue is deciding what matters first when vulnerability discovery accelerates.
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