CVE-2018-8226 in the critical feed json
A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2…
published 8y ago modified 4mo ago also EUVD-2018-19895
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.4%
- EPSS 14.4% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
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Check with FencerExploit prediction
14.39% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- Microsoft Windows Server 2016
- Microsoft Windows 10
- Microsoft Windows 10 Servers
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8226
patch, vendor-advisory
-
securityfocus.com
/bid/104361
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041094
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8226
- NVD CVE-2018-8226
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