CVE-2018-0956

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka "HTTP.sys Denial of Service Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
MicrosoftWindows Server 2016(Server Core installation)
MicrosoftWindows 1032-bit Systems; Version 1511 for 32-bit Systems; Version 1511 for x64-based Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; Version 1709 for x64-based Systems; x64-based Systems
MicrosoftWindows 10 Serversversion 1709 (Server Core Installation)

References

Timeline

Published
Apr 12, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-0956: High severity, CVSS 7.5 | Vulnix