High severity · published Jun 14, 2018
CVE-2018-8226
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…
7.5
CVSS
13.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)13.6% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
1607; 1703; 1709; 1803 · source: NVD
WS
Windows Server 1803 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2016 · Microsoft
1709 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8226
CVE.org
https://www.cve.org/CVERecord?id=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
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