---
id: CVE-2026-45648
title: Windows Active Directory Domain Services Remote Code Execution Vulnerability
summary: >-
  Stack-based buffer overflow in Active Directory Domain Services allows an
  authorized attacker to execute code over a network.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-121
vendor: Microsoft
product: Windows Server 2022
affected:
  - windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5256
  - windows_server_2025 >= 10.0.26100.0 < 10.0.26100.32995
  - >-
    windows_server_2025_server_core_installation >= 10.0.26100.0 <
    10.0.26100.32995
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-05T00:00:00+00:00'
published: '2026-06-09'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T13:43:55.074Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-45648'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45648'
    label: >-
      Windows Active Directory Domain Services Remote Code Execution
      Vulnerability
tags:
  - cve.org
epss: 0.00913
epssPercentile: 0.58355
ingestedAt: '2026-09-24T14:44:21.424Z'
---

## Overview

Stack-based buffer overflow in Active Directory Domain Services allows an authorized attacker to execute code over a network.

## Affected

- `windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5256`
- `windows_server_2025 >= 10.0.26100.0 < 10.0.26100.32995`
- `windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.32995`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.