PT-2025-42052 · Microsoft · Windows Ancillary Function Driver For Winsock+1

Published 2025-10-14 · Updated 2026-03-10 · CVE-2025-58714

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 An improper access control issue exists in the Windows Ancillary Function Driver for WinSock. This allows a local attacker who is already authorized to elevate privileges.

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

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2025-13204

CVE-2025-58714

Affected Products

Windows

Windows Ancillary Function Driver For Winsock

References · 7

• https://bdu.fstec.ru/vul/2025-13204 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58714 · Security Note
• https://osv.dev/vulnerability/CVE-2025-58714 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-58714 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-58714 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-58714 · Vendor Advisory
• https://twitter.com/CVEnew/status/1978171205581684877 · Twitter Post