CVE-2018-8226

high-risk
Published 2018-06-14

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.

Do I need to act?

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18.8% chance of exploitation in next 30 days
EPSS score — higher than 81% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/104361
Third Party Advisory http://www.securitytracker.com/id/1041094
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8226
Third Party Advisory http://www.securityfocus.com/bid/104361
Third Party Advisory http://www.securitytracker.com/id/1041094
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8226
53
/ 100
high-risk
Severity 26/34 · High
Exploitability 13/34 · Low
Exposure 14/34 · Moderate