Security Updates for Microsoft Visual Studio Products (November 2021)

high Nessus Plugin ID 155018


The Microsoft Visual Studio Products are missing a security update.


The Microsoft Visual Studio Products are missing a security update. They are, therefore, affected by multiple vulnerabilities:

- A denial of service (DoS) vulnerability exists in the OpenSSL component of Visual Studio. An unauthenticated, remote attacker can exploit this issue to cause the application to stop responding. (CVE-2020-1971)

- Multiple A privilege escalation vulnerabilities exist in Visual Studio. An unauthenticated, local attacker can exploit thees to gain privileged access to the system. (CVE-2021-42277, CVE-2021-42319)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Microsoft has released the following security updates to address this issue:
- Update 15.9.41 for Visual Studio 2017
- Update 16.7.21 for Visual Studio 2019
- Update 16.9.13 for Visual Studio 2019
- Update 16.11.6 for Visual Studio 2019

See Also

Plugin Details

Severity: High

ID: 155018

File Name: smb_nt_ms21_nov_visual_studio.nasl

Version: 1.5

Type: local

Agent: windows

Published: 11/10/2021

Updated: 4/27/2022

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure

Risk Information


Risk Factor: High

Score: 7.4


Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

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

CVSS Score Source: CVE-2021-42277


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:visual_studio

Required KB Items: installed_sw/Microsoft Visual Studio, SMB/Registry/Enumerated

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2021

Vulnerability Publication Date: 10/9/2021

Reference Information

CVE: CVE-2020-1971, CVE-2021-42277, CVE-2021-42319

IAVA: 2021-A-0542-S