# KB5065509: September 2025 security update

KB5065509, released September 9, 2025, fixes 34 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5065509
- Platform: Microsoft
- Released: Sep 9, 2025
- Priority: Urgent (Closes CVE-2025-54918, exploitation more likely)
- CVEs: 34, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5065509

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Windows Server 2012](https://patchblox.com/security/data/product/microsoft/windows-server-2012.md) |  |  |
| [Windows Server 2012 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2012-server-core-installation.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-54918](https://patchblox.com/security/data/cve/CVE-2025-54918.md) | Urgent | Windows NTLM | 8.8 | 0.2528 | More likely |
| [CVE-2025-55234](https://patchblox.com/security/data/cve/CVE-2025-55234.md) | Urgent | Windows SMB | 8.8 | 0.2076 | Disclosed |
| [CVE-2025-54110](https://patchblox.com/security/data/cve/CVE-2025-54110.md) | Urgent | Windows Kernel | 8.8 | 0.0472 | More likely |
| [CVE-2025-54098](https://patchblox.com/security/data/cve/CVE-2025-54098.md) | Urgent | Role: Windows Hyper-V | 7.8 | 0.0332 | More likely |
| [CVE-2025-54916](https://patchblox.com/security/data/cve/CVE-2025-54916.md) | Urgent | Windows NTFS | 7.8 | 0.0278 | More likely |
| [CVE-2025-53799](https://patchblox.com/security/data/cve/CVE-2025-53799.md) | Urgent | Windows Imaging Component | 5.5 | 0.0084 |  |
| [CVE-2025-53803](https://patchblox.com/security/data/cve/CVE-2025-53803.md) | Urgent | Windows Kernel | 5.5 | 0.0066 | More likely |
| [CVE-2025-53804](https://patchblox.com/security/data/cve/CVE-2025-53804.md) | Urgent | Windows Kernel | 5.5 | 0.0066 | More likely |
| [CVE-2025-55226](https://patchblox.com/security/data/cve/CVE-2025-55226.md) | Urgent | Graphics Kernel | 6.7 | 0.0053 |  |
| [CVE-2025-54093](https://patchblox.com/security/data/cve/CVE-2025-54093.md) | Urgent | Windows TCP/IP | 7.0 | 0.0038 | More likely |
| [CVE-2025-54113](https://patchblox.com/security/data/cve/CVE-2025-54113.md) | High | Windows Routing and Remote Access Service (RRAS) | 8.8 | 0.0094 |  |
| [CVE-2025-54911](https://patchblox.com/security/data/cve/CVE-2025-54911.md) | High | Windows BitLocker | 7.3 | 0.0077 |  |
| [CVE-2025-54912](https://patchblox.com/security/data/cve/CVE-2025-54912.md) | High | Windows BitLocker | 7.8 | 0.0054 |  |
| [CVE-2025-54091](https://patchblox.com/security/data/cve/CVE-2025-54091.md) | High | Role: Windows Hyper-V | 7.8 | 0.0045 |  |
| [CVE-2025-54894](https://patchblox.com/security/data/cve/CVE-2025-54894.md) | High | Windows Local Security Authority Subsystem Service (LSASS) | 7.8 | 0.0045 |  |
| [CVE-2025-54099](https://patchblox.com/security/data/cve/CVE-2025-54099.md) | High | Windows Ancillary Function Driver for WinSock | 7.0 | 0.0038 |  |
| [CVE-2025-54895](https://patchblox.com/security/data/cve/CVE-2025-54895.md) | High | Windows SPNEGO Extended Negotiation | 7.8 | 0.0029 |  |
| [CVE-2025-54101](https://patchblox.com/security/data/cve/CVE-2025-54101.md) | Routine | Windows SMBv3 Client | 4.8 | 0.0312 |  |
| [CVE-2025-55225](https://patchblox.com/security/data/cve/CVE-2025-55225.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0126 |  |
| [CVE-2025-53796](https://patchblox.com/security/data/cve/CVE-2025-53796.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-53797](https://patchblox.com/security/data/cve/CVE-2025-53797.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-53798](https://patchblox.com/security/data/cve/CVE-2025-53798.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-53806](https://patchblox.com/security/data/cve/CVE-2025-53806.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-54095](https://patchblox.com/security/data/cve/CVE-2025-54095.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-54096](https://patchblox.com/security/data/cve/CVE-2025-54096.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-54097](https://patchblox.com/security/data/cve/CVE-2025-54097.md) | Routine | Windows Routing and Remote Access Service (RRAS) | 6.5 | 0.0120 |  |
| [CVE-2025-54107](https://patchblox.com/security/data/cve/CVE-2025-54107.md) | Routine | Windows MapUrlToZone | 4.3 | 0.0096 |  |
| [CVE-2025-54917](https://patchblox.com/security/data/cve/CVE-2025-54917.md) | Routine | Windows MapUrlToZone | 4.3 | 0.0095 |  |
| [CVE-2025-54104](https://patchblox.com/security/data/cve/CVE-2025-54104.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0051 |  |
| [CVE-2025-54915](https://patchblox.com/security/data/cve/CVE-2025-54915.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0048 |  |
| [CVE-2025-53808](https://patchblox.com/security/data/cve/CVE-2025-53808.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0048 |  |
| [CVE-2025-54109](https://patchblox.com/security/data/cve/CVE-2025-54109.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0048 |  |
| [CVE-2025-53810](https://patchblox.com/security/data/cve/CVE-2025-53810.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0046 |  |
| [CVE-2025-54094](https://patchblox.com/security/data/cve/CVE-2025-54094.md) | Routine | Windows Defender Firewall Service | 6.7 | 0.0046 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo
