What is the severity of CVE-2025-26651?

CVE-2025-26651 has been classified as a critical vulnerability due to its potential to allow denial of service attacks.

How do I fix CVE-2025-26651?

To fix CVE-2025-26651, apply the latest security patches provided by Microsoft for the affected Windows products.

Which products are affected by CVE-2025-26651?

CVE-2025-26651 affects various Microsoft products, including Windows Server 2022, Windows 11 versions 22H2 and 24H2, and Windows Server 2025.

Can CVE-2025-26651 be exploited remotely?

Yes, CVE-2025-26651 can be exploited remotely by an authorized attacker to cause a denial of service.

What impact does CVE-2025-26651 have on my system?

The impact of CVE-2025-26651 includes potential service disruption, which can affect the availability of the applications and services running on the affected system.

Vulnerability/
CVE-2025-26651

medium

6.5

CWE

749

8/4/2025

23/4/2025

CVE-2025-26651: Windows Local Session Manager (LSM) Denial of Service Vulnerability

First published: Tue Apr 08 2025(Updated: )

<p>Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.</p>

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Windows Server 2022 23H2		fix available externally
Windows 11	=22H2	fix available externally
Windows 11	=22H2	fix available externally
Windows 11	=24H2	fix available externally
Microsoft Windows Server 2025		fix available externally
Microsoft Windows Server 2022		fix available externally
Microsoft Windows Server 2025		fix available externally
Microsoft Windows Server 2022		fix available externally
Windows 11	=23H2	fix available externally
Windows 11	=23H2	fix available externally
Windows 11	=24H2	fix available externally

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Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26651 (Advisory)

Frequently Asked Questions

What is the severity of CVE-2025-26651?
CVE-2025-26651 has been classified as a critical vulnerability due to its potential to allow denial of service attacks.
How do I fix CVE-2025-26651?
To fix CVE-2025-26651, apply the latest security patches provided by Microsoft for the affected Windows products.
Which products are affected by CVE-2025-26651?
CVE-2025-26651 affects various Microsoft products, including Windows Server 2022, Windows 11 versions 22H2 and 24H2, and Windows Server 2025.
Can CVE-2025-26651 be exploited remotely?
Yes, CVE-2025-26651 can be exploited remotely by an authorized attacker to cause a denial of service.
What impact does CVE-2025-26651 have on my system?
The impact of CVE-2025-26651 includes potential service disruption, which can affect the availability of the applications and services running on the affected system.

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