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CVE-2023-36802

Microsoft Streaming Service Proxy Privilege Escalation Vulnerability

Microsoft Streaming Service Proxy
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 12 Sep 2023CISA KEV
Exploit odds (EPSS)27.9%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.17763.4851Also 10.0.20348.1970, 10.0.22000.2416 and 3 moreCVE List
Federal deadline3 Oct 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

  • 10.0.17763.4851Windows 10 Version 1809CVE List
  • 10.0.17763.4851Windows Server 2019CVE List
  • 10.0.17763.4851Windows Server 2019 (Server Core installation)CVE List
  • 10.0.20348.1970Windows Server 2022CVE List
  • 10.0.22000.2416Windows 11 version 21H2CVE List
  • 10.0.19044.3448Windows 10 Version 21H2CVE List
Show all 8 fixed versions
  • 10.0.22621.2283Windows 11 version 22H2CVE List
  • 10.0.19045.3448Windows 10 Version 22H2CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 12 Sep 2023Added to CISA KEVCISA KEV
  2. 12 Sep 2023, 16:58 UTCPublishedCVE List

Description

Microsoft Streaming Service Proxy contains an unspecified vulnerability that allows for privilege escalation.

Text from CVE List

Affected versions 9

  • Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.4851CVE List
  • Windows 10 Version 1809affected: 10.0.0 before 10.0.17763.4851CVE List
  • Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.4851CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.4851CVE List
  • Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.1970CVE List
  • Windows 11 version 21H2affected: 10.0.0 before 10.0.22000.2416CVE List
  • Windows 10 Version 21H2affected: 10.0.19043.0 before 10.0.19044.3448CVE List
  • Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.2283CVE List
  • Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.3448CVE List

References 3