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.

Patch nowCISA KEV

CVSS

7.8

Important

Exploitation

Exploited

Reported by the vendor

CISA KEV

Sep 12, 2023

Federal due date Oct 3, 2023

EPSS

0.2791

98th percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.4851	KB5030214	Sep 12, 2023
Windows 10 Version 1809 for ARM64-based Systems	17763.4851	KB5030214	Sep 12, 2023
Windows 10 Version 1809 for x64-based Systems	17763.4851	KB5030214	Sep 12, 2023
Windows 10 Version 21H2 for 32-bit Systems		KB5030211	Sep 12, 2023
Windows 10 Version 21H2 for ARM64-based Systems		KB5030211	Sep 12, 2023
Windows 10 Version 21H2 for x64-based Systems		KB5030211	Sep 12, 2023
Windows 10 Version 22H2 for 32-bit Systems		KB5030211	Sep 12, 2023
Windows 10 Version 22H2 for ARM64-based Systems		KB5030211	Sep 12, 2023
Windows 10 Version 22H2 for x64-based Systems		KB5030211	Sep 12, 2023
Windows 11 Version 22H2 for ARM64-based Systems	22621.2283	KB5030219	Sep 12, 2023
Windows 11 Version 22H2 for x64-based Systems	22621.2283	KB5030219	Sep 12, 2023
Windows 11 version 21H2 for ARM64-based Systems	22000.2416	KB5030217	Sep 12, 2023
Windows 11 version 21H2 for x64-based Systems	22000.2416	KB5030217	Sep 12, 2023
Windows Server 2019	17763.4851	KB5030214	Sep 12, 2023
Windows Server 2019 (Server Core installation)	17763.4851	KB5030214	Sep 12, 2023
Windows Server 2022		KB5030325	Sep 12, 2023
Windows Server 2022	20348.1970	KB5030216	Sep 12, 2023
Windows Server 2022 (Server Core installation)		KB5030325	Sep 12, 2023
Windows Server 2022 (Server Core installation)	20348.1970	KB5030216	Sep 12, 2023

Details

Published
September 12, 2023
Weakness
Use After Free
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802

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