Detections
Analytics

Security Update for Microsoft .NET Core (October 2025)

medium Nessus Plugin ID 270711

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Synopsis

The remote Windows host is affected by a .NET Core vulnerability

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by information disclosure vulnerability as referenced in the vendor advisory.

 - Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network. (CVE-2025-55248)

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

Solution

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

See Also

https://dotnet.microsoft.com/en-us/download/dotnet/9.0

http://www.nessus.org/u?d39faa38

https://dotnet.microsoft.com/en-us/download/dotnet/8.0

http://www.nessus.org/u?22351646

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248

https://support.microsoft.com/help/5068332

Plugin Details

Severity: Medium

ID: 270711

File Name: smb_nt_ms25_oct_dotnet_core.nasl

Version: 1.1

Type: local

Family: Misc.

Published: 10/17/2025

Updated: 10/17/2025

Supported Sensors: Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

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

CVSS Score Source: CVE-2025-55248

CVSS v3

Risk Factor: Medium

Base Score: 4.8

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Exploit Ease: No known exploits are available

Patch Publication Date: 10/14/2025

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-55248

IAVA: 2025-A-0752