CVE-2023-36802: Microsoft Streaming Service Proxy Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-09-12. EPSS: 27.9% chance of exploitation in the next 30 days.

Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1809: before 10.0.17763.4851 (fixed in 10.0.17763.4851)
• Microsoft Windows 10 21h2: before 10.0.19044.3448 (fixed in 10.0.19044.3448)
• Microsoft Windows 10 22h2: before 10.0.19045.3448 (fixed in 10.0.19045.3448)
• Microsoft Windows 11 21h2: before 10.0.22000.2416 (fixed in 10.0.22000.2416)
• Microsoft Windows 11 22h2: before 10.0.22621.2275 (fixed in 10.0.22621.2275)
• Microsoft Windows Server 2019: before 10.0.17763.4851 (fixed in 10.0.17763.4851)
• Microsoft Windows Server 2022: before 10.0.20348.1970 (fixed in 10.0.20348.1970)

Published 2023-09-12. Last modified 2026-06-17.