# CVE-2023-36802: Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability

CVE-2023-36802 is fixed in 17 products on 1 platform, first by KB5030214, released September 12, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on September 12, 2023. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2023-36802
- Priority: Patch now
- CVSS: 7.8 (Important)
- EPSS: 0.2791
- CISA KEV: listed Sep 12, 2023, federal due date Oct 3, 2023
- Exploited (vendor report): yes
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Detected
- Published: Sep 12, 2023
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.4851 | [KB5030214](https://patchblox.com/security/data/fix/microsoft/kb5030214.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.4851 | [KB5030214](https://patchblox.com/security/data/fix/microsoft/kb5030214.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.4851 | [KB5030214](https://patchblox.com/security/data/fix/microsoft/kb5030214.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 21H2 for 32-bit Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 21H2 for ARM64-based Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 21H2 for x64-based Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 22H2 for 32-bit Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 22H2 for ARM64-based Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 10 Version 22H2 for x64-based Systems |  | [KB5030211](https://patchblox.com/security/data/fix/microsoft/kb5030211.md) | Sep 12, 2023 |
| Microsoft | Windows 11 Version 22H2 for ARM64-based Systems | 22621.2283 | [KB5030219](https://patchblox.com/security/data/fix/microsoft/kb5030219.md) | Sep 12, 2023 |
| Microsoft | Windows 11 Version 22H2 for x64-based Systems | 22621.2283 | [KB5030219](https://patchblox.com/security/data/fix/microsoft/kb5030219.md) | Sep 12, 2023 |
| Microsoft | Windows 11 version 21H2 for ARM64-based Systems | 22000.2416 | [KB5030217](https://patchblox.com/security/data/fix/microsoft/kb5030217.md) | Sep 12, 2023 |
| Microsoft | Windows 11 version 21H2 for x64-based Systems | 22000.2416 | [KB5030217](https://patchblox.com/security/data/fix/microsoft/kb5030217.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2019 | 17763.4851 | [KB5030214](https://patchblox.com/security/data/fix/microsoft/kb5030214.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.4851 | [KB5030214](https://patchblox.com/security/data/fix/microsoft/kb5030214.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2022 |  | [KB5030325](https://patchblox.com/security/data/fix/microsoft/kb5030325.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2022 | 20348.1970 | [KB5030216](https://patchblox.com/security/data/fix/microsoft/kb5030216.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) |  | [KB5030325](https://patchblox.com/security/data/fix/microsoft/kb5030325.md) | Sep 12, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.1970 | [KB5030216](https://patchblox.com/security/data/fix/microsoft/kb5030216.md) | Sep 12, 2023 |

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Data as of 2026-11-08T00:53:09Z 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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