CVE-2026-47291 CRITICAL

CVE-2026-47291: HTTP.sys Remote Code Execution Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-190
Published June 9, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 15, 2026 Record updated