PT-2025-32808 · Microsoft · Windows Ancillary Function Driver For Winsock+1

Marat Gayanov · Published 2025-04-15 · Updated 2025-08-12 · CVE-2025-53141

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Windows Ancillary Function Driver for WinSock (affected versions not specified)

Description: A null pointer dereference exists in the Windows Ancillary Function Driver for WinSock. This issue allows an authorized attacker to elevate privileges locally.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-04861

CVE-2025-53141

Affected Products

Windows

Windows Ancillary Function Driver For Winsock

References · 7

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-53141 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53141 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-53141 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-53141 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53141 · Security Note
• https://bdu.fstec.ru/vul/2025-04861 · Security Note
• https://twitter.com/CVEnew/status/1955322664538538177 · Twitter Post