# KB5034184: January 2024 security update

KB5034184, released January 9, 2024, fixes 22 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5034184
- Platform: Microsoft
- Released: Jan 9, 2024
- Priority: Urgent (Closes CVE-2024-20674, exploitation more likely)
- CVEs: 22, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5034184

## 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-2024-20674](https://patchblox.com/security/data/cve/CVE-2024-20674.md) | Urgent | Windows Authentication Methods | 8.8 | 0.1717 | More likely |
| [CVE-2024-20653](https://patchblox.com/security/data/cve/CVE-2024-20653.md) | Urgent | Windows Common Log File System Driver | 7.8 | 0.0449 | More likely |
| [CVE-2024-20683](https://patchblox.com/security/data/cve/CVE-2024-20683.md) | Urgent | Windows Win32K | 7.8 | 0.0421 | More likely |
| [CVE-2024-20652](https://patchblox.com/security/data/cve/CVE-2024-20652.md) | Urgent | Windows Scripting | 8.1 | 0.0208 | More likely |
| [CVE-2024-21307](https://patchblox.com/security/data/cve/CVE-2024-21307.md) | Urgent | Remote Desktop Client | 7.5 | 0.0196 | More likely |
| [CVE-2024-20661](https://patchblox.com/security/data/cve/CVE-2024-20661.md) | High | Windows Message Queuing | 7.5 | 0.0276 |  |
| [CVE-2024-20654](https://patchblox.com/security/data/cve/CVE-2024-20654.md) | High | Windows ODBC Driver | 8.0 | 0.0199 |  |
| [CVE-2024-20682](https://patchblox.com/security/data/cve/CVE-2024-20682.md) | High | Windows Cryptographic Services | 7.8 | 0.0076 |  |
| [CVE-2024-20658](https://patchblox.com/security/data/cve/CVE-2024-20658.md) | High | Microsoft Virtual Hard Drive | 7.8 | 0.0071 |  |
| [CVE-2024-20657](https://patchblox.com/security/data/cve/CVE-2024-20657.md) | High | Windows Group Policy | 7.0 | 0.0057 |  |
| [CVE-2024-21320](https://patchblox.com/security/data/cve/CVE-2024-21320.md) | Routine | Windows Themes | 6.5 | 0.2260 |  |
| [CVE-2024-21314](https://patchblox.com/security/data/cve/CVE-2024-21314.md) | Routine | Windows Message Queuing | 6.5 | 0.0208 |  |
| [CVE-2024-20660](https://patchblox.com/security/data/cve/CVE-2024-20660.md) | Routine | Windows Message Queuing | 6.5 | 0.0204 |  |
| [CVE-2024-20680](https://patchblox.com/security/data/cve/CVE-2024-20680.md) | Routine | Windows Message Queuing | 6.5 | 0.0204 |  |
| [CVE-2024-20664](https://patchblox.com/security/data/cve/CVE-2024-20664.md) | Routine | Windows Message Queuing | 6.5 | 0.0200 |  |
| [CVE-2024-20663](https://patchblox.com/security/data/cve/CVE-2024-20663.md) | Routine | Windows Message Queuing | 6.5 | 0.0193 |  |
| [CVE-2024-20662](https://patchblox.com/security/data/cve/CVE-2024-20662.md) | Routine | Windows Online Certificate Status Protocol (OCSP) SnapIn | 4.9 | 0.0192 |  |
| [CVE-2024-21313](https://patchblox.com/security/data/cve/CVE-2024-21313.md) | Routine | Windows TCP/IP | 5.3 | 0.0150 |  |
| [CVE-2024-20655](https://patchblox.com/security/data/cve/CVE-2024-20655.md) | Routine | Windows Online Certificate Status Protocol (OCSP) SnapIn | 6.6 | 0.0141 |  |
| [CVE-2024-20692](https://patchblox.com/security/data/cve/CVE-2024-20692.md) | Routine | Windows Local Security Authority Subsystem Service (LSASS) | 5.7 | 0.0118 |  |
| [CVE-2024-21311](https://patchblox.com/security/data/cve/CVE-2024-21311.md) | Routine | Windows Cryptographic Services | 5.5 | 0.0078 |  |
| [CVE-2024-20691](https://patchblox.com/security/data/cve/CVE-2024-20691.md) | Routine | Windows Themes | 4.7 | 0.0059 |  |

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Data as of 2026-11-07T12:40:37Z 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