Security Updates for Microsoft .NET Framework (February 2026)

medium Nessus Plugin ID 306756

Synopsis

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

Description

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

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (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

Microsoft has released the following security update to address this issue:
-KB5074837

Plugin Details

Severity: Medium

ID: 306756

File Name: smb_nt_ms26_feb_dotnet.nasl

Version: 1.2

Type: Local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 4/16/2026

Updated: 4/17/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-55248

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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_framework

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2/10/2026

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-55248

MSFT: MS26-5074837

MSKB: 5074837

Detections

Analytics