CVE-2026-34346 MEDIUM

CVE-2026-34346: Windows Ancillary Function Driver for WinSock Information Disclosure Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-319 · Cleartext transmission
Published July 14, 2026
Last update August 18, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.

Key dates

02Disclosure timeline

July 14, 2026 CVE published
August 18, 2026 Record updated