Security Updates for Microsoft .NET Framework (September 2018)

Critical Nessus Plugin ID 117431

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 5.9


The Microsoft .NET Framework installation on the remote host is missing a security update.


The Microsoft .NET Framework installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :

- A remote code execution vulnerability exists when Microsoft .NET Framework processes input. An attacker who successfully exploited this vulnerability could take control of an affected system. (CVE-2018-8421)


Microsoft has released security updates for Microsoft .NET Framework.

See Also

Plugin Details

Severity: Critical

ID: 117431

File Name: smb_nt_ms18_sep_dotnet.nasl

Version: 1.7

Type: local

Agent: windows

Published: 2018/09/12

Updated: 2019/11/01

Dependencies: 99364, 51351, 13855, 57033

Risk Information

Risk Factor: Critical

VPR Score: 5.9

CVSS Score Source: CVE-2018-8421

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:.net_framework

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/09/11

Vulnerability Publication Date: 2018/09/11

Reference Information

CVE: CVE-2018-8421

BID: 105222

MSKB: 4457035, 4457038, 4457033, 4457142, 4457030, 4457025, 4457027, 4457026, 4457043, 4457028, 4457128, 4457045, 4457044, 4457132, 4457131, 4457036, 4457037, 4457034, 4457053, 4457054, 4457055, 4457056, 4457138, 4457029, 4457042

MSFT: MS18-4457035, MS18-4457038, MS18-4457033, MS18-4457142, MS18-4457030, MS18-4457025, MS18-4457027, MS18-4457026, MS18-4457043, MS18-4457028, MS18-4457128, MS18-4457045, MS18-4457044, MS18-4457132, MS18-4457131, MS18-4457036, MS18-4457037, MS18-4457034, MS18-4457053, MS18-4457054, MS18-4457055, MS18-4457056, MS18-4457138, MS18-4457029, MS18-4457042