What is the severity of CVE-2025-26649?

CVE-2025-26649 has been rated as a high severity vulnerability due to its potential to allow local privilege escalation.

How do I fix CVE-2025-26649?

To fix CVE-2025-26649, apply the relevant security patches provided by Microsoft for affected software.

Which products are affected by CVE-2025-26649?

CVE-2025-26649 affects multiple products, including various versions of Windows Server 2022, 2025, and Windows 11.

Can CVE-2025-26649 be exploited remotely?

No, CVE-2025-26649 requires local access to the system to exploit the vulnerability.

What type of vulnerability is CVE-2025-26649?

CVE-2025-26649 is characterized as a race condition vulnerability affecting synchronization in shared resources.

Vulnerability/
CVE-2025-26649

high

CWE

362 416

8/4/2025

16/4/2025

CVE-2025-26649: Windows Secure Channel Elevation of Privilege Vulnerability

First published: Tue Apr 08 2025(Updated: )

<p>Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Secure Channel allows an authorized attacker to elevate privileges locally.</p>

Credit: secure@microsoft.com

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

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Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26649 (Advisory)

Frequently Asked Questions

What is the severity of CVE-2025-26649?
CVE-2025-26649 has been rated as a high severity vulnerability due to its potential to allow local privilege escalation.
How do I fix CVE-2025-26649?
To fix CVE-2025-26649, apply the relevant security patches provided by Microsoft for affected software.
Which products are affected by CVE-2025-26649?
CVE-2025-26649 affects multiple products, including various versions of Windows Server 2022, 2025, and Windows 11.
Can CVE-2025-26649 be exploited remotely?
No, CVE-2025-26649 requires local access to the system to exploit the vulnerability.
What type of vulnerability is CVE-2025-26649?
CVE-2025-26649 is characterized as a race condition vulnerability affecting synchronization in shared resources.

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