---
id: CVE-2024-26230
title: Windows Telephony Server Elevation of Privilege Vulnerability
summary: Windows Telephony Server Elevation of Privilege Vulnerability
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: microsoft
product: windows_10_1507
affected:
  - windows_10_1507 < 10.0.10240.20596
  - windows_10_1607 < 10.0.14393.6897
  - windows_10_1809 < 10.0.17763.5696
  - windows_10_21h2 < 10.0.19044.4291
  - windows_10_22h2 < 10.0.19045.4291
  - windows_11_21h2 < 10.0.22000.2899
  - windows_11_22h2 < 10.0.22621.3447
  - windows_11_23h2 < 10.0.22631.3447
  - windows_server_2008
  - windows_server_2008 = r2
  - windows_server_2012
  - windows_server_2012 = r2
  - windows_server_2016 < 10.0.14393.6897
  - windows_server_2019 < 10.0.17763.5696
  - windows_server_2022 < 10.0.20348.2402
  - windows_server_2022_23h2 < 10.0.25398.830
patched:
  - windows_10_1507 10.0.10240.20596
  - windows_10_1607 10.0.14393.6897
  - windows_10_1809 10.0.17763.5696
  - windows_10_21h2 10.0.19044.4291
  - windows_10_22h2 10.0.19045.4291
  - windows_11_21h2 10.0.22000.2899
  - windows_11_22h2 10.0.22621.3447
  - windows_11_23h2 10.0.22631.3447
  - windows_server_2016 10.0.14393.6897
  - windows_server_2019 10.0.17763.5696
  - windows_server_2022 10.0.20348.2402
  - windows_server_2022_23h2 10.0.25398.830
published: '2024-04-09'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T22:17:15.833'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-26230'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26230'
    label: secure@microsoft.com
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26230'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2024-09-13T03:55:15.381942Z'
epss: 0.24111
epssPercentile: 0.97856
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/kiwids0220/CVE-2024-26230'
    - 'https://github.com/Wa1nut4/CVE-2024-26230'
  checkedAt: '2026-11-05T06:38:49.868Z'
ingestedAt: '2026-11-05T06:38:03.563Z'
---

## Overview

Windows Telephony Server Elevation of Privilege Vulnerability

## Affected

- `windows_10_1507 < 10.0.10240.20596`
- `windows_10_1607 < 10.0.14393.6897`
- `windows_10_1809 < 10.0.17763.5696`
- `windows_10_21h2 < 10.0.19044.4291`
- `windows_10_22h2 < 10.0.19045.4291`
- `windows_11_21h2 < 10.0.22000.2899`
- `windows_11_22h2 < 10.0.22621.3447`
- `windows_11_23h2 < 10.0.22631.3447`
- `windows_server_2008`
- `windows_server_2008 = r2`
- `windows_server_2012`
- `windows_server_2012 = r2`
- `windows_server_2016 < 10.0.14393.6897`
- `windows_server_2019 < 10.0.17763.5696`
- `windows_server_2022 < 10.0.20348.2402`
- `windows_server_2022_23h2 < 10.0.25398.830`

## Remediation

Upgrade past the affected range:

- `windows_10_1507 10.0.10240.20596`
- `windows_10_1607 10.0.14393.6897`
- `windows_10_1809 10.0.17763.5696`
- `windows_10_21h2 10.0.19044.4291`
- `windows_10_22h2 10.0.19045.4291`
- `windows_11_21h2 10.0.22000.2899`
- `windows_11_22h2 10.0.22621.3447`
- `windows_11_23h2 10.0.22631.3447`
- `windows_server_2016 10.0.14393.6897`
- `windows_server_2019 10.0.17763.5696`
- `windows_server_2022 10.0.20348.2402`
- `windows_server_2022_23h2 10.0.25398.830`