CVE-2026-68831 MEDIUM

CVE-2026-68831: Windows Defender Firewall Service Information Disclosure Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-552 · Files accessible externally
Published September 8, 2026
Last update September 29, 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

Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker to disclose information locally.

Key dates

02Disclosure timeline

September 8, 2026 CVE published
September 29, 2026 Record updated