# CVE-2023-28305: Windows DNS Server Remote Code Execution Vulnerability

CVE-2023-28305 is fixed in 16 products on 1 platform, first by KB5025228, released April 11, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-28305
- Priority: Routine
- CVSS: 6.6 (Important)
- EPSS: 0.0085
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Apr 11, 2023
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28305

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5025277](https://patchblox.com/security/data/fix/microsoft/kb5025277.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5025279](https://patchblox.com/security/data/fix/microsoft/kb5025279.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5025277](https://patchblox.com/security/data/fix/microsoft/kb5025277.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5025279](https://patchblox.com/security/data/fix/microsoft/kb5025279.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5025271](https://patchblox.com/security/data/fix/microsoft/kb5025271.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5025273](https://patchblox.com/security/data/fix/microsoft/kb5025273.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5025271](https://patchblox.com/security/data/fix/microsoft/kb5025271.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5025273](https://patchblox.com/security/data/fix/microsoft/kb5025273.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5025271](https://patchblox.com/security/data/fix/microsoft/kb5025271.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5025273](https://patchblox.com/security/data/fix/microsoft/kb5025273.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5025271](https://patchblox.com/security/data/fix/microsoft/kb5025271.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5025273](https://patchblox.com/security/data/fix/microsoft/kb5025273.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 |  | [KB5025287](https://patchblox.com/security/data/fix/microsoft/kb5025287.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 |  | [KB5025272](https://patchblox.com/security/data/fix/microsoft/kb5025272.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5025287](https://patchblox.com/security/data/fix/microsoft/kb5025287.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5025272](https://patchblox.com/security/data/fix/microsoft/kb5025272.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 R2 |  | [KB5025288](https://patchblox.com/security/data/fix/microsoft/kb5025288.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 R2 |  | [KB5025285](https://patchblox.com/security/data/fix/microsoft/kb5025285.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5025288](https://patchblox.com/security/data/fix/microsoft/kb5025288.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5025285](https://patchblox.com/security/data/fix/microsoft/kb5025285.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2016 | 14393.5850 | [KB5025228](https://patchblox.com/security/data/fix/microsoft/kb5025228.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.5850 | [KB5025228](https://patchblox.com/security/data/fix/microsoft/kb5025228.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2019 | 17763.4252 | [KB5025229](https://patchblox.com/security/data/fix/microsoft/kb5025229.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.4252 | [KB5025229](https://patchblox.com/security/data/fix/microsoft/kb5025229.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2022 | 20348.1668 | [KB5025230](https://patchblox.com/security/data/fix/microsoft/kb5025230.md) | Apr 11, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.1668 | [KB5025230](https://patchblox.com/security/data/fix/microsoft/kb5025230.md) | Apr 11, 2023 |

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Data as of 2026-11-08T19:12:23Z 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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