Description
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.4851, 10.0.0 – < 10.0.17763.4851 | 10.0.17763.4851 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.4851 | 10.0.17763.4851 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.4851 | 10.0.17763.4851 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.1970 | 10.0.20348.1970 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – < 10.0.22000.2416 | 10.0.22000.2416 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 – < 10.0.19044.3448 | 10.0.19044.3448 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.2283 | 10.0.22621.2283 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.3448 | 10.0.19045.3448 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 6 repositories
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chompie1337/Windows_MSKSSRV_LPE_CVE-2023-36802 ★ 164 · Oct 9, 2023
LPE exploit for CVE-2023-36802
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Nero22k/cve-2023-36802 ★ 110 · Oct 23, 2023
Exploit for CVE-2023-36802 targeting MSKSSRV.SYS driver
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x0rb3l/CVE-2023-36802-MSKSSRV-LPE ★ 35 · Oct 20, 2023
PoC for CVE-2023-36802 Microsoft Kernel Streaming Service Proxy
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4zur-0312/CVE-2023-36802 ★ 14 · Oct 19, 2023
CVE-2023-36802 ITW case
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nhh9905/CVE-2023-36802 ★ 0 · Jul 15, 2026
Old CVE, but new way to leak everything.
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rahul0xkr/Reproducing-CVE-2023-36802 ★ 0 · Sep 26, 2025
Reverse engineering and vulnerability research on CVE-2023-36802, focusing on object type confusion in mksssrv.sys.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- WID-SEC-2023-2328 Microsoft Windows und Microsoft Windows Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 31, 2023
- MSRC-CVE-2023-36802 Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability Microsoft Security Response Center · Sep 19, 2023