CVE-2018-8231
HTTP Protocol Stack Remote Code Execution Vulnerability
CVE-2018-8231 is fixed in 14 products on 1 platform, first by KB4284880, released June 12, 2018. It is not reported as exploited. Patch Radar priority: Urgent.
Urgent
CVSS
8.1
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1698
97th percentile
<p>A remote code execution vulnerability exists when HTTP Protocol Stack (Http.sys) improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code and take control of the affected system.</p> <p>To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted Http.sys server.</p> <p>The security update fixes this vulnerability by correcting how HTTP Protocol Stack(Http.sys) handles objects in memory.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.2312 | KB4284880 | Jun 12, 2018 |
| Windows 10 Version 1607 for x64-based Systems | 14393.2312 | KB4284880 | Jun 12, 2018 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.1155 | KB4284874 | Jun 12, 2018 |
| Windows 10 Version 1703 for x64-based Systems | 15063.1155 | KB4284874 | Jun 12, 2018 |
| Windows 10 Version 1709 for 32-bit Systems | 16299.492 | KB4284819 | Jun 12, 2018 |
| Windows 10 Version 1709 for x64-based Systems | 16299.492 | KB4284819 | Jun 12, 2018 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.112 | KB4284835 | Jun 12, 2018 |
| Windows 10 Version 1803 for x64-based Systems | 17134.112 | KB4284835 | Jun 12, 2018 |
| Windows 10 for 32-bit Systems | 10240.17889 | KB4284860 | Jun 12, 2018 |
| Windows 10 for x64-based Systems | 10240.17889 | KB4284860 | Jun 12, 2018 |
| Windows Server 2016 | 14393.2312 | KB4284880 | Jun 12, 2018 |
| Windows Server 2016 (Server Core installation) | 14393.2312 | KB4284880 | Jun 12, 2018 |
| Windows Server, version 1709 (Server Core Installation) | 16299.492 | KB4284819 | Jun 12, 2018 |
| Windows Server, version 1803 (Server Core Installation) | 17134.112 | KB4284835 | Jun 12, 2018 |