Microsoft Visual Studio Products (September 2026)

high Nessus Plugin ID 344292

Synopsis

The Microsoft Visual Studio Products are affected by multiple vulnerabilities.

Description

The Microsoft Visual Studio Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:

- Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network. (CVE-2026-69439)

- Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network. (CVE-2026-69522, CVE-2026-71328)

- External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network. (CVE-2026-69805)

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

Solution

Microsoft has released the following security updates to address this issue:
- Update to 17.14.40 for Visual Studio 2022 17.14
- Update to 18.9.3 for Visual Studio 2026 18.9

Plugin Details

Severity: High

ID: 344292

File Name: smb_nt_ms26_sep_visual_studio.nasl

Version: 1.2

Type: Local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 9/9/2026

Updated: 9/10/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-69806

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS Score Source: CVE-2026-71328

Vulnerability Information

CPE: cpe:/a:microsoft:visual_studio

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 9/8/2026

Reference Information

CVE: CVE-2026-58649, CVE-2026-69304, CVE-2026-69439, CVE-2026-69522, CVE-2026-69805, CVE-2026-69806, CVE-2026-71328

CWE: 122, 200, 346, 409, 522, 73, 94

Detections

Analytics