Security Updates for Microsoft .NET Framework (May 2026)

high Nessus Plugin ID 314930

Synopsis

The Microsoft .NET Framework installation on the remote host is affected by an other vulnerability.

Description

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

- Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
(CVE-2026-32177)

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 updates to address this issue:
-KB5087048
-KB5087049
-KB5087051
-KB5087053
-KB5087054
-KB5087055
-KB5087058
-KB5087059
-KB5087061
-KB5087062
-KB5087063
-KB5087064
-KB5087065
-KB5087066
-KB5087067
-KB5087068
-KB5087069

Plugin Details

Severity: High

ID: 314930

File Name: smb_nt_ms26_may_dotnet.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 5/15/2026

Updated: 5/15/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 9

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

CVSS Score Source: CVE-2026-32177

CVSS v3

Risk Factor: High

Base Score: 7.3

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_framework

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Patch Publication Date: 5/12/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-32177

IAVA: 2026-A-0474

MSFT: MS26-5087048, MS26-5087049, MS26-5087051, MS26-5087053, MS26-5087054, MS26-5087055, MS26-5087058, MS26-5087059, MS26-5087061, MS26-5087062, MS26-5087063, MS26-5087064, MS26-5087065, MS26-5087066, MS26-5087067, MS26-5087068, MS26-5087069

MSKB: 5087048, 5087049, 5087051, 5087053, 5087054, 5087055, 5087058, 5087059, 5087061, 5087062, 5087063, 5087064, 5087065, 5087066, 5087067, 5087068, 5087069

Detections

Analytics