CVE-2018-8335 : A denial of service vulnerability exists in the Microsoft Server Block Message (

A denial of service vulnerability exists in the Microsoft Server Block Message (SMB) when an attacker sends specially crafted requests to the server, aka "Windows SMB Denial of Service Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.

Published 2018-09-13 00:29:01

Updated 2020-08-24 17:37:01

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2018-8335

Microsoft » Windows Server » Version: 2012
cpe:2.3:o:microsoft:windows_server:2012:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server » Version: 2012 Update R2
cpe:2.3:o:microsoft:windows_server:2012:r2:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server » Version: 2016
cpe:2.3:o:microsoft:windows_server:2016:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server » Version: 2016 Update 1803
cpe:2.3:o:microsoft:windows_server:2016:1803:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server » Version: 2016 Update 1709
cpe:2.3:o:microsoft:windows_server:2016:1709:*:*:*:*:*:*
Matching versions
Microsoft » Windows 8.1 » Version: N/A
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 8.1 » Version: N/A RT Edition
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:rt:*:*:*
Matching versions
Microsoft » Windows 10 » Version: N/A
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1607
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1703
cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1709
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: 1803
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2018-8335

EPSS FAQ

0.46%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 76 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-8335

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2018-8335

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8335

CVE-2018-8335 | Windows SMB Denial of Service Vulnerability
Patch;Vendor Advisory
http://www.securitytracker.com/id/1041634

Windows Server Message Block Lets Remote Authenticated Users Cause the Target Service to Stop Accepting Requests - SecurityTracker
Third Party Advisory;VDB Entry
http://www.securityfocus.com/bid/105224

Microsoft Windows SMB Server CVE-2018-8335 Denial of Service Vulnerability
Third Party Advisory;VDB Entry

Jump to

Vulnerability Details : CVE-2018-8335

Products affected by CVE-2018-8335

Exploit prediction scoring system (EPSS) score for CVE-2018-8335

CVSS scores for CVE-2018-8335

References for CVE-2018-8335