CVE-2023-29360: Microsoft Streaming Service Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 8.4)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
More Likely
Patch Tuesday
2023-Jun
Released
2023-06-13
Last Updated
2023-08-10
EPSS Score
30.29% (percentile: 96.7%)
CISA KEV
Listed — due 2024-03-21

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Known Exploits (3)

  • Microsoft Streaming Service Untrusted Pointer Dereference Vulnerability — added 2025-10-12T05:01:15Z
  • Microsoft Streaming Service Untrusted Pointer Dereference Vulnerability — added 2024-08-31T21:08:39Z
  • Microsoft Streaming Service Untrusted Pointer Dereference Vulnerability — added 2023-09-24T21:59:23Z

Detection & Weaponization (1 sources)

Maturity: Exploit

  • GitHub PoC: 3 repositories

Affected Products (21)

Windows

  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows 11 version 21H2 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)

Security Updates (7)

Acknowledgments

Thomas Imbert (@masthoon) from Synacktiv (@Synacktiv) Working with <a href=https://www.zerodayinitiative.com/>Trend Micro Zero Day Initiative</a>

Revision History

  • 2023-06-13: Information published.
  • 2023-08-10: Corrected CVE title and updated one or more CVSS scores for the affected products. These are informational changes only.