Skip to content
Microsoft’s September Patch Tuesday has landed, and it’s a big one. The update includes fixes for 974 vulnerabilities across Windows, Office, Exchange, SharePoint, SQL Server and other Microsoft products, making it the largest Patch Tuesday release Microsoft has issued to date. It also addresses two vulnerabilities that are already being actively exploited.
While headlines naturally focus on the record number of vulnerabilities, the real challenge for most organisations isn’t the size of the update. It’s deciding what to prioritise.
The challenge isn’t patching, it’s prioritising
Security teams simply don’t have the time or resources to treat nearly 1,000 vulnerabilities as equally urgent.
The organisations that respond most effectively will be those with a mature vulnerability management process that allows them to identify which assets are most exposed, which vulnerabilities present the greatest risk, and where remediation efforts should be focused first.
The two actively exploited vulnerabilities should be at the top of the list, but they aren’t the whole story. The update also contains more than 100 critical vulnerabilities affecting widely used Microsoft products and services. History tells us that once technical details become public, threat actors move quickly to identify unpatched systems.
Understanding exposure matters more than volume
For many organisations, patching itself is no longer the biggest problem. Understanding exposure is.
We’ve seen plenty of environments where organisations have robust patching processes but struggle to answer fundamental questions such as:
- Which systems are internet-facing?
- Which assets contain sensitive data?
- Which vulnerabilities are most likely to be exploited?
- Which systems would have the greatest business impact if compromised?
Without that context, patching can quickly become a race to remediate everything at once.
AI is changing the vulnerability landscape
This month’s release also reflects a wider trend. As software vendors make greater use of AI-assisted security research and vulnerability discovery, we’re likely to see more vulnerabilities being identified and disclosed than ever before.
That’s good news from a security perspective, but it will place increasing pressure on already stretched IT and security teams. Microsoft previously indicated that its use of AI-assisted vulnerability discovery would increase the volume of reported flaws, and this month’s record-breaking release appears to support that prediction.
Taking a risk-based approach
When faced with hundreds of vulnerabilities, attempting to patch everything immediately is rarely realistic.
Instead, organisations should focus on understanding which vulnerabilities pose the greatest risk to their business, prioritising internet-facing systems, critical infrastructure and high-value assets first.
A risk-based approach allows security teams to focus efforts where they will have the greatest impact, reducing overall exposure while making better use of limited resources.
Visibility remains the foundation of effective security
The lesson from this month’s Patch Tuesday isn’t that organisations need to patch faster. It’s that they need better visibility, better prioritisation and a more mature approach to vulnerability management.
Because when nearly 1,000 vulnerabilities arrive in a single update, knowing what matters most becomes just as important as applying the patches themselves.
