CVE-2023-36802
High 7.8 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Microsoft Streaming Service Proxy Privilege Escalation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Metrics
- CVSS 3.1
-
7.8 (HIGH)
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 28% (percentile: 98) as of 2 November 2026
- CWE
- CWE-416
Affected products
microsoft: windows 10 1809; microsoft: windows 10 21h2; microsoft: windows 10 22h2; microsoft: windows 11 21h2; microsoft: windows 11 22h2; microsoft: windows server 2019; microsoft: windows server 2022
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802 PatchVendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802 PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023… US Government Resource