Vulnerabilities · InfosecFeed Brief

September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)

Vulnerabilities

What you need to know

This month, Microsoft released patches for a record-breaking 973 vulnerabilities, including 113 rated critical. It is by far the largest Patch Tuesday to date, well ahead of the previous high of 664 set in July 2026. Two vulnerabilities are listed as exploited in the wild, while none were publicly disclosed before Patch Tuesday. Notable fixes include…

Source transparency

This is an InfosecFeed curated brief based on reporting from SANS Internet Storm Center. InfosecFeed does not claim ownership of the original reporting.

Read the original report at SANS Internet Storm Center ↗