How severe is CVE-2023-36802?

CVE-2023-36802 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 27.9% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-36802: Microsoft Streaming Service Proxy Elevation of

CISA Known Exploited Vulnerabilities

Microsoft Streaming Service Proxy Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-09-12

Remediation due

2023-10-03

Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA notes
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802; https://nvd.nist.gov/vuln/detail/CVE-2023-36802

Description

Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability

Severity

CVSS 3.1 · CNA7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Microsoft	Windows 10 Version 1809	10.0.17763.0 to <10.0.17763.4851
Microsoft	Windows 10 Version 1809	10.0.0 to <10.0.17763.4851
Microsoft	Windows Server 2019	10.0.17763.0 to <10.0.17763.4851
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 to <10.0.17763.4851
Microsoft	Windows Server 2022	10.0.20348.0 to <10.0.20348.1970
Microsoft	Windows 11 version 21H2	10.0.0 to <10.0.22000.2416
Microsoft	Windows 10 Version 21H2	10.0.19043.0 to <10.0.19044.3448
Microsoft	Windows 11 version 22H2	10.0.22621.0 to <10.0.22621.2283
Microsoft	Windows 10 Version 22H2	10.0.19045.0 to <10.0.19045.3448

References

1 Links

Vendor advisories

Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability

Record Details

Published

2023-09-12

Last updated

2025-10-30

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.