8.1
HIGH
CVE-2025-26663
Microsoft Windows LDAP Use-After-Free Remote Code Execution
Description

Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.

INFO

Published Date :

April 8, 2025, 6:15 p.m.

Last Modified :

April 9, 2025, 8:03 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2025-26663 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_server_2008
2 Microsoft windows_server_2012
3 Microsoft windows_server_2016
4 Microsoft windows_server_2019
5 Microsoft windows_server_2022
6 Microsoft windows_11_22h2
7 Microsoft windows
8 Microsoft windows_11_23h2
9 Microsoft windows_server_2022_23h2
10 Microsoft windows_11_24h2
11 Microsoft windows_server_2025
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-26663.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26663

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-26663 vulnerability anywhere in the article.

  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 16, 2025 (2 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 16, 2025 (6 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 16, 2025 (8 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 16, 2025 (10 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (18 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (20 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (22 hours, 34 minutes ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (1 day ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (1 day, 6 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (1 day, 11 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (1 day, 13 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 15, 2025 (1 day, 17 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 14, 2025 (1 day, 19 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 14, 2025 (2 days, 3 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 14, 2025 (2 days, 9 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 14, 2025 (2 days, 11 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 14, 2025 (2 days, 17 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 13, 2025 (3 days, 2 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 13, 2025 (3 days, 8 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 13, 2025 (3 days, 10 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 12, 2025 (3 days, 21 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 12, 2025 (3 days, 23 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 12, 2025 (4 days, 3 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 12, 2025 (4 days, 10 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (4 days, 19 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (5 days, 1 hour ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (5 days, 3 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (5 days, 7 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (5 days, 9 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 11, 2025 (5 days, 11 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (5 days, 23 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 1 hour ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 3 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 5 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 11 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 13 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 10, 2025 (6 days, 17 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (6 days, 19 hours ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • The Hacker News
Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability

Endpoint Security / Vulnerability Microsoft has released security fixes to address a massive set of 126 flaws affecting its software products, including one vulnerability that it said has been activel ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • TheCyberThrone
Microsoft Patch Tuesday, April 2025

Microsoft’s April 2025 Patch Tuesday is one of the most significant updates in recent months, addressing a wide array of vulnerabilities across its expansive product ecosystem. With a total of 121 vul ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • CrowdStrike.com
April 2025 Patch Tuesday: One Zero-Day and 11 Critical Vulnerabilities Among 121 CVEs

Microsoft has addressed 121 vulnerabilities in its April 2025 security update release. This month's patches include fixes for one actively exploited zero-day vulnerability and 11 Critical vulnerabilit ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • krebsonsecurity.com
Patch Tuesday, April 2025 Edition

Microsoft today released updates to plug at least 121 security holes in its Windows operating systems and software, including one vulnerability that is already being exploited in the wild. Eleven of t ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • Daily CyberSecurity
Microsoft April 2025 Patch Tuesday: Critical Security Updates and Zero-Day Exploits

This April, Microsoft’s Patch Tuesday release addresses a significant number of vulnerabilities, highlighting the ever-present need for robust cybersecurity practices. The tech giant rolled out fixes ... Read more

Published Date: Apr 09, 2025 (1 week ago)
  • The Cyber Express
Microsoft Patch Tuesday April 2025: One Zero-Day, 11 High-Risk Flaws

Microsoft Patch Tuesday for April 2025 included fixes for 135 vulnerabilities in all, including one actively exploited zero-day and an additional 11 high-risk vulnerabilities. In all, Patch Tuesday Ap ... Read more

Published Date: Apr 08, 2025 (1 week ago)
  • Help Net Security
Microsoft fixes actively exploited Windows CLFS zero-day (CVE-2025-29824)

April 2025 Patch Tuesday is here, and Microsoft has delivered fixes for 120+ vulnerabilities, including a zero-day (CVE-2025-29824) that’s under active attack. CVE-2025-29824 CVE-2025-29824 is a user- ... Read more

Published Date: Apr 08, 2025 (1 week ago)

The following table lists the changes that have been made to the CVE-2025-26663 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Apr. 08, 2025

    Action Type Old Value New Value
    Added Description Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26663
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-26663 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-26663 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability