Improper input validation in Microsoft products - CVE-2018-8226
Published: June 12, 2018 / Updated: August 16, 2022
Vulnerability identifier: #VU13295
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-8226
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when processing HTTP 2.0 requests within the HTTP.sys driver. A remote attacker can send a specially crafted HTTP response to vulnerable system and crash it.
Successful exploitation of the vulnerability may allow an attacker to perform a denial of service attack.
Affected software
Microsoft Windows
Windows Server
Microsoft Internet Information Services (IIS)
Windows Server
Microsoft Internet Information Services (IIS)
How to mitigate CVE-2018-8226
Install updates from vendor's website.