# CVE-2023-23376: Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVE-2023-23376 is fixed in 35 products on 1 platform, first by KB5022838, released February 14, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on February 14, 2023, with known ransomware use. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2023-23376
- Priority: Patch now
- CVSS: 7.8 (Important)
- EPSS: 0.1085
- CISA KEV: listed Feb 14, 2023, federal due date Mar 7, 2023, known ransomware use
- Exploited (vendor report): yes
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Detected
- Published: Feb 14, 2023
- Weakness: Heap-based Buffer Overflow
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23376

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.5717 | [KB5022838](https://patchblox.com/security/data/fix/microsoft/kb5022838.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.5717 | [KB5022838](https://patchblox.com/security/data/fix/microsoft/kb5022838.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.4010 | [KB5022840](https://patchblox.com/security/data/fix/microsoft/kb5022840.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.4010 | [KB5022840](https://patchblox.com/security/data/fix/microsoft/kb5022840.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.4010 | [KB5022840](https://patchblox.com/security/data/fix/microsoft/kb5022840.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 20H2 for 32-bit Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 20H2 for ARM64-based Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 21H2 for 32-bit Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 21H2 for ARM64-based Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 21H2 for x64-based Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 22H2 for 32-bit Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 22H2 for ARM64-based Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 Version 22H2 for x64-based Systems |  | [KB5022834](https://patchblox.com/security/data/fix/microsoft/kb5022834.md) | Feb 14, 2023 |
| Microsoft | Windows 10 for 32-bit Systems | 10240.19747 | [KB5022858](https://patchblox.com/security/data/fix/microsoft/kb5022858.md) | Feb 14, 2023 |
| Microsoft | Windows 10 for x64-based Systems | 10240.19747 | [KB5022858](https://patchblox.com/security/data/fix/microsoft/kb5022858.md) | Feb 14, 2023 |
| Microsoft | Windows 11 Version 22H2 for ARM64-based Systems | 22621.1265 | [KB5022845](https://patchblox.com/security/data/fix/microsoft/kb5022845.md) | Feb 14, 2023 |
| Microsoft | Windows 11 Version 22H2 for x64-based Systems | 22621.1265 | [KB5022845](https://patchblox.com/security/data/fix/microsoft/kb5022845.md) | Feb 14, 2023 |
| Microsoft | Windows 11 version 21H2 for ARM64-based Systems | 22000.1574 | [KB5022836](https://patchblox.com/security/data/fix/microsoft/kb5022836.md) | Feb 14, 2023 |
| Microsoft | Windows 11 version 21H2 for x64-based Systems | 22000.1574 | [KB5022836](https://patchblox.com/security/data/fix/microsoft/kb5022836.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5022874](https://patchblox.com/security/data/fix/microsoft/kb5022874.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5022872](https://patchblox.com/security/data/fix/microsoft/kb5022872.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5022874](https://patchblox.com/security/data/fix/microsoft/kb5022874.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5022872](https://patchblox.com/security/data/fix/microsoft/kb5022872.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5022893](https://patchblox.com/security/data/fix/microsoft/kb5022893.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5022890](https://patchblox.com/security/data/fix/microsoft/kb5022890.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5022893](https://patchblox.com/security/data/fix/microsoft/kb5022893.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5022890](https://patchblox.com/security/data/fix/microsoft/kb5022890.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5022893](https://patchblox.com/security/data/fix/microsoft/kb5022893.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5022890](https://patchblox.com/security/data/fix/microsoft/kb5022890.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5022893](https://patchblox.com/security/data/fix/microsoft/kb5022893.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5022890](https://patchblox.com/security/data/fix/microsoft/kb5022890.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 |  | [KB5022895](https://patchblox.com/security/data/fix/microsoft/kb5022895.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 |  | [KB5022903](https://patchblox.com/security/data/fix/microsoft/kb5022903.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5022895](https://patchblox.com/security/data/fix/microsoft/kb5022895.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5022903](https://patchblox.com/security/data/fix/microsoft/kb5022903.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 R2 |  | [KB5022894](https://patchblox.com/security/data/fix/microsoft/kb5022894.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 R2 |  | [KB5022899](https://patchblox.com/security/data/fix/microsoft/kb5022899.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5022894](https://patchblox.com/security/data/fix/microsoft/kb5022894.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5022899](https://patchblox.com/security/data/fix/microsoft/kb5022899.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2016 | 14393.5717 | [KB5022838](https://patchblox.com/security/data/fix/microsoft/kb5022838.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.5717 | [KB5022838](https://patchblox.com/security/data/fix/microsoft/kb5022838.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2019 | 17763.4010 | [KB5022840](https://patchblox.com/security/data/fix/microsoft/kb5022840.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.4010 | [KB5022840](https://patchblox.com/security/data/fix/microsoft/kb5022840.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2022 |  | [KB5022921](https://patchblox.com/security/data/fix/microsoft/kb5022921.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2022 | 20348.1547 | [KB5022842](https://patchblox.com/security/data/fix/microsoft/kb5022842.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) |  | [KB5022921](https://patchblox.com/security/data/fix/microsoft/kb5022921.md) | Feb 14, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.1547 | [KB5022842](https://patchblox.com/security/data/fix/microsoft/kb5022842.md) | Feb 14, 2023 |

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Data as of 2026-11-08T13:06:02Z 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

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