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Windows 11 cumulative updates KB5124008 & KB5122880 released
September 8, 2026 · BleepingComputer · Severity: MEDIUM
Microsoft has released Windows 11 cumulative updates KB5124008 and KB5122880 for September 2026. The updates include security fixes for various vulnerabilities and quality improvements. Users are encouraged to install the updates through Windows Update.
Key Takeaways
- Security patches address multiple CVEs across affected product lines
- Critical and high-severity vulnerabilities require prioritized deployment
- Review full advisory for product-specific patch guidance and mitigations