Microsoft .NET Core SDK Information Disclosure Vulnerability

medium Nessus Plugin ID 344809

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Synopsis

The Microsoft .NET Core SDK installations on the remote host are affected by an information disclosure vulnerability.

Description

The Microsoft .NET Core SDK installations on the remote host are missing a security update. It is, therefore, affected by an information disclosure vulnerability.

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

Solution

Update SDK.NET Core, remove vulnerable packages and refer to vendor advisory.

Plugin Details

Severity: Medium

ID: 344809

File Name: smb_nt_ms26_sep_dotnet_core_sdk_CVE-2026-58649.nasl

Version: 1.2

Type: Local

Agent: windows

Family: Windows

Published: 9/11/2026

Updated: 9/14/2026

Configuration: Enable paranoid mode

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-58649

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Required KB Items: Settings/ParanoidReport, installed_sw/.NET Core SDK Windows

Exploit Ease: No known exploits are available

Patch Publication Date: 8/11/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-58649

IAVA: 2026-A-0949

Detections

Analytics