CVE-2018-8335

Windows SMB Denial of Service Vulnerability

CVE-2018-8335 is fixed in 21 products on 1 platform, first by KB4457131, released September 11, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
4.8
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0900
95th percentile

<p>A denial of service vulnerability exists in the Microsoft Server Block Message (SMB) when an attacker sends specially crafted requests to the server. An attacker who exploited this vulnerability could cause the affected system to crash. To attempt to exploit this issue, an attacker would need to send specially crafted SMB requests to the target system.</p> <p>Note that the denial of service vulnerability would not allow an attacker to execute code or to elevate their user rights, but it could cause the affected system to stop accepting requests.</p> <p>The security update addresses the vulnerability by correcting the manner in which SMB handles specially crafted client requests.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems 14393.2485 KB4457131 Sep 11, 2018
Windows 10 Version 1607 for x64-based Systems 14393.2485 KB4457131 Sep 11, 2018
Windows 10 Version 1703 for 32-bit Systems 15063.1324 KB4457138 Sep 11, 2018
Windows 10 Version 1703 for x64-based Systems 15063.1324 KB4457138 Sep 11, 2018
Windows 10 Version 1709 for 32-bit Systems 16299.665 KB4457142 Sep 11, 2018
Windows 10 Version 1709 for x64-based Systems 16299.665 KB4457142 Sep 11, 2018
Windows 10 Version 1803 for 32-bit Systems 17134.285 KB4457128 Sep 11, 2018
Windows 10 Version 1803 for x64-based Systems 17134.285 KB4457128 Sep 11, 2018
Windows 10 for 32-bit Systems 10240.17976 KB4457132 Sep 11, 2018
Windows 10 for x64-based Systems 10240.17976 KB4457132 Sep 11, 2018
Windows 8.1 for 32-bit systems KB4457129 Sep 11, 2018
Windows 8.1 for 32-bit systems KB4457143 Sep 11, 2018
Windows 8.1 for x64-based systems KB4457129 Sep 11, 2018
Windows 8.1 for x64-based systems KB4457143 Sep 11, 2018
Windows RT 8.1 KB4457129 Sep 11, 2018
Windows Server 2012 KB4457135 Sep 11, 2018
Windows Server 2012 KB4457140 Sep 11, 2018
Windows Server 2012 (Server Core installation) KB4457135 Sep 11, 2018
Windows Server 2012 (Server Core installation) KB4457140 Sep 11, 2018
Windows Server 2012 R2 KB4457129 Sep 11, 2018
Windows Server 2012 R2 KB4457143 Sep 11, 2018
Windows Server 2012 R2 (Server Core installation) KB4457129 Sep 11, 2018
Windows Server 2012 R2 (Server Core installation) KB4457143 Sep 11, 2018
Windows Server 2016 14393.2485 KB4457131 Sep 11, 2018
Windows Server 2016 (Server Core installation) 14393.2485 KB4457131 Sep 11, 2018
Windows Server, version 1709 (Server Core Installation) 16299.665 KB4457142 Sep 11, 2018
Windows Server, version 1803 (Server Core Installation) 17134.285 KB4457128 Sep 11, 2018