SecuriTricks - CVE-2025-53134

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Product(s) Impacted

Vendor	Product	Versions
Microsoft	Windows Ancillary Function Driver For Winsock	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	microsoft	windows_ancillary_function_driver_for_winsock	/	/	/	/	/	/	/	/

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53134

CVSS Score

7.0 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: HIGH
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

View Vector String

Timeline

Published: Aug. 12, 2025, 6:15 p.m.
Last Modified: Aug. 12, 2025, 6:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secure@microsoft.com

CVE-2025-53134