# Microsoft Patches a Record 570 Security Flaws – Krebs on Security

> Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last month.

- Published: 2026-09-17T19:42:02.093Z
- Updated: 2026-09-17T19:42:02.093Z
- 1 source
- Topics: Economy, business and finance
- Involves: Jack Bicer, Microsoft Corp., Pavan Davuluri, software updates to plug at least 570 security holes in its Windows operating systems and other software

## How it developed

- 2026-09-17T19:42:02.093Z - Krebs on Security: [Microsoft Patches a Record 570 Security Flaws – Krebs on Security](https://krebsonsecurity.com/2026/07/microsoft-patches-a-record-570-security-flaws/)

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