---
id: "CVE-2023-29360"
kind: "vulnerability"
aliases: ["CVE-2023-29360"]
title: "Microsoft Streaming Service Elevation of Privilege Vulnerability"
severity: "high"
cvss: 8.4
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Microsoft Streaming Service", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1607", "fixed": ["10.0.14393.5989"], "affected": "< 10.0.14393.5989", "ecosystem": "vendor"}, {"name": "microsoft windows 10 1809", "fixed": ["10.0.17763.4499"], "affected": "< 10.0.17763.4499", "ecosystem": "vendor"}, {"name": "microsoft windows 10 21h2", "fixed": ["10.0.19044.3086"], "affected": "< 10.0.19044.3086", "ecosystem": "vendor"}, {"name": "microsoft windows 10 22h2", "fixed": ["10.0.19045.3086"], "affected": "< 10.0.19045.3086", "ecosystem": "vendor"}, {"name": "microsoft windows 11 21h2", "fixed": ["10.0.22000.2057"], "affected": "< 10.0.22000.2057", "ecosystem": "vendor"}, {"name": "microsoft windows 11 22h2", "fixed": ["10.0.22621.1848"], "affected": "< 10.0.22621.1848", "ecosystem": "vendor"}, {"name": "microsoft windows server 2016", "fixed": ["10.0.14393.5989"], "affected": "< 10.0.14393.5989", "ecosystem": "vendor"}, {"name": "microsoft windows server 2019", "fixed": ["10.0.17763.4499"], "affected": "< 10.0.17763.4499", "ecosystem": "vendor"}, {"name": "microsoft windows server 2022", "fixed": ["10.0.20348.1784"], "affected": "< 10.0.20348.1784", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "microsoft-streaming-service", "windows"]
not_affected_if: ["unknown"]
published_at: "2023-06-14T00:15:10+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-29360", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-29360", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# Microsoft Streaming Service Elevation of Privilege Vulnerability

Microsoft Streaming Service has an untrusted pointer dereference flaw that lets a local user escalate privileges. An attacker with a local foothold can gain SYSTEM rights on the Windows machine.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Microsoft Streaming Service affected ? fixed ?
- vendor:microsoft windows 10 1607 affected < 10.0.14393.5989 fixed 10.0.14393.5989
- vendor:microsoft windows 10 1809 affected < 10.0.17763.4499 fixed 10.0.17763.4499
- vendor:microsoft windows 10 21h2 affected < 10.0.19044.3086 fixed 10.0.19044.3086
- vendor:microsoft windows 10 22h2 affected < 10.0.19045.3086 fixed 10.0.19045.3086
- vendor:microsoft windows 11 21h2 affected < 10.0.22000.2057 fixed 10.0.22000.2057
- vendor:microsoft windows 11 22h2 affected < 10.0.22621.1848 fixed 10.0.22621.1848
- vendor:microsoft windows server 2016 affected < 10.0.14393.5989 fixed 10.0.14393.5989
- vendor:microsoft windows server 2019 affected < 10.0.17763.4499 fixed 10.0.17763.4499
- vendor:microsoft windows server 2022 affected < 10.0.20348.1784 fixed 10.0.20348.1784

## Fix

Apply the Microsoft security update for CVE-2023-29360 per vendor instructions, or discontinue use of the affected product if mitigations are unavailable.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-29360
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-29360

## From the sources

Microsoft Streaming Service contains an untrusted pointer dereference vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.

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

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_