CVE-2025-26663: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

Published Apr 8, 2025
·
Updated

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

Other sources

Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

Microsoft

Affected Software

58 affected componentsFixes available
Microsoft Windows 11=22H2
Microsoft Windows 11=24H2
Microsoft Windows Server 2022
Microsoft Windows Server 2025
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows 10=1607
Microsoft Windows 10=1607
Microsoft Windows 10=21H2
Microsoft Windows Server 2008
Microsoft Windows Server 2012
Microsoft Windows 11=23H2
Microsoft Windows Server 2016
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=21H2
Microsoft Windows Server 2025
Microsoft Windows 10=21H2
Microsoft Windows 11=23H2
Microsoft Windows Server 2016
Microsoft Windows Server 2022, 23H2 Edition
Microsoft Windows Server 2012
Microsoft Windows Server 2008
Microsoft Windows 10=1809
Microsoft Windows Server 2019
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012 R2
Microsoft Windows 10=22H2
Microsoft Windows 11=22H2
Microsoft Windows Server 2019
Microsoft Windows 11=24H2
Microsoft Windows 10=1809
Microsoft Windows Server 2022
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008 R2
Microsoft Windows 10 1507<10.0.10240.20978
Microsoft Windows 10 1507<10.0.10240.20978
Microsoft Windows 10 1607<10.0.14393.7969
Microsoft Windows 10 1607<10.0.14393.7969
Microsoft Windows 10 1809<10.0.17763.7136
Microsoft Windows 10 1809<10.0.17763.7136
Microsoft Windows 10 21h2<10.0.19044.5737
Microsoft Windows 10 22h2<10.0.19045.5737
Microsoft Windows 11 22h2<10.0.22621.5189
Microsoft Windows 11 23h2<10.0.22631.5189
Microsoft Windows 11 24h2<10.0.26100.3775
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.7969
Microsoft Windows Server 2019<10.0.17763.7136
Microsoft Windows Server 2022<10.0.20348.3453
Microsoft Windows Server 2022 23h2<10.0.25398.1551
Microsoft Windows Server 2025<10.0.26100.3775

Event History

Apr 8, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
CVE Published
via MITRE·05:23 PM
Data Sourced
via MITRE·05:23 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
News Published
via The Register·11:43 PM
News Published
via The Register·11:47 PM
Apr 12, 2025
Known Exploited
11:50 PM
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Frequently Asked Questions

1

What is the severity of CVE-2025-26663?

CVE-2025-26663 is considered a critical vulnerability that can allow unauthorized code execution over a network.

2

How do I fix CVE-2025-26663?

To fix CVE-2025-26663, apply the recommended patches provided by Microsoft for your affected Windows version.

3

Which versions of Windows are affected by CVE-2025-26663?

CVE-2025-26663 affects various versions including Windows 10, Windows 11, and multiple Windows Server editions.

4

What are the risks associated with CVE-2025-26663?

The risks include potential unauthorized access, data breaches, and remote code execution capabilities for attackers.

5

Is there a workaround for CVE-2025-26663 until a patch is applied?

Currently, the best practice is to apply the patch as soon as it is available; no specific workaround is recommended.

Contact

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