Multiple vulnerabilities in Microsoft Windows Secure Channel



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2025-26649
CVE-2025-27492
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Race condition

EUVDB-ID: #VU107235

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-26649

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Windows Secure Channel. A local user can exploit the race and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2012 R2 6.3.9600.21871 - 2025 10.0.26100.3476

Windows: 10 1607 10.0.14393.10 - 11 24H2 10.0.26100.3476

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU107236

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-27492

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Windows Secure Channel. A local user can exploit the race and escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows Server: 2012 R2 6.3.9600.21871 - 2025 10.0.26100.3476

Windows: 10 1607 10.0.14393.10 - 11 24H2 10.0.26100.3476

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27492


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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