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Windows 11 KB5121003 & KB5120240 cumulative updates released
August 11, 2026 · BleepingComputer · Severity: MEDIUM
Microsoft released Windows 11 cumulative updates KB5121003 and KB5120240 for versions 25H2/24H2 and 23H2. These updates address security vulnerabilities, fix bugs, and add new features to enhance system performance and protection.
Key Takeaways
- Windows 11 cumulative updates KB5121003 and KB5120240 fix security vulnerabilities and bugs.
- These updates target versions 25H2/24H2 and 23H2 of Windows 11.
- New features are also included alongside the security and bug fixes.