Detections
Analytics

KB5094123: Windows 10 version 1809 / Windows Server 2019 Security Update (June 2026)

critical Nessus Plugin ID 320189

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5094123. It is, therefore, affected by multiple vulnerabilities

 - Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network. (CVE-2026-47291)

 - Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. (CVE-2026-42909, CVE-2026-42985, CVE-2026-42992, CVE-2026-44799, CVE-2026-44801, CVE-2026-47289, CVE-2026-47653, CVE-2026-47654, CVE-2026-48563)

 - Heap-based buffer overflow in Microsoft Windows DNS allows an authorized attacker to elevate privileges locally. (CVE-2026-41108)

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

Solution

Apply Security Update 5094123

See Also

https://support.microsoft.com/help/5094123

Plugin Details

Severity: Critical

ID: 320189

File Name: smb_nt_ms26_jun_5094123.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 6/9/2026

Updated: 6/9/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-47653

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS Score Source: CVE-2026-47291

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2019, cpe:/o:microsoft:windows_10_1809

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2020-17103, CVE-2026-33828, CVE-2026-34335, CVE-2026-40404, CVE-2026-40409, CVE-2026-41092, CVE-2026-41108, CVE-2026-42828, CVE-2026-42836, CVE-2026-42837, CVE-2026-42903, CVE-2026-42905, CVE-2026-42907, CVE-2026-42908, CVE-2026-42909, CVE-2026-42911, CVE-2026-42912, CVE-2026-42914, CVE-2026-42916, CVE-2026-42968, CVE-2026-42969, CVE-2026-42970, CVE-2026-42971, CVE-2026-42972, CVE-2026-42973, CVE-2026-42977, CVE-2026-42978, CVE-2026-42979, CVE-2026-42980, CVE-2026-42983, CVE-2026-42984, CVE-2026-42985, CVE-2026-42986, CVE-2026-42987, CVE-2026-42989, CVE-2026-42991, CVE-2026-42992, CVE-2026-44799, CVE-2026-44801, CVE-2026-44802, CVE-2026-44803, CVE-2026-44805, CVE-2026-44812, CVE-2026-44815, CVE-2026-45586, CVE-2026-45588, CVE-2026-45592, CVE-2026-45593, CVE-2026-45594, CVE-2026-45595, CVE-2026-45596, CVE-2026-45598, CVE-2026-45599, CVE-2026-45601, CVE-2026-45602, CVE-2026-45603, CVE-2026-45605, CVE-2026-45606, CVE-2026-45607, CVE-2026-45608, CVE-2026-45634, CVE-2026-45635, CVE-2026-45636, CVE-2026-45637, CVE-2026-45638, CVE-2026-45639, CVE-2026-45642, CVE-2026-45653, CVE-2026-45655, CVE-2026-45656, CVE-2026-45658, CVE-2026-47288, CVE-2026-47289, CVE-2026-47291, CVE-2026-47648, CVE-2026-47653, CVE-2026-47654, CVE-2026-47656, CVE-2026-48563, CVE-2026-48568, CVE-2026-48570, CVE-2026-48573, CVE-2026-48574, CVE-2026-48575, CVE-2026-48576, CVE-2026-48578, CVE-2026-48583, CVE-2026-49160, CVE-2026-50507, CVE-2026-8863

MSFT: MS26-5094123

MSKB: 5094123