Detections
Analytics

KB5065432: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (September 2025)

high Nessus Plugin ID 261807

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5065432 or hotpatch 5065306. It is, therefore, affected by multiple vulnerabilities

 - SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks:
 Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server HardeningSMB Server Signing & SMB Server EPA. Adopt appropriate SMB Server hardening measures. (CVE-2025-55234)

 - Improper restriction of communication channel to intended endpoints in Windows PowerShell allows an authorized attacker to elevate privileges locally. (CVE-2025-49734)

 - Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network. (CVE-2025-53796, CVE-2025-53797, CVE-2025-53798, CVE-2025-53806)

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 5065432 or hotpatch 5065306

See Also

https://support.microsoft.com/help/5065432

https://support.microsoft.com/help/5065306

Plugin Details

Severity: High

ID: 261807

File Name: smb_nt_ms25_sep_5065432.nasl

Version: 1.1

Type: local

Agent: windows

Published: 9/9/2025

Updated: 9/9/2025

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

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-2025-55234

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:microsoft:azure_stack_hci:22h2, cpe:/o:microsoft:windows_server_2022

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 9/9/2025

Vulnerability Publication Date: 9/9/2025

Reference Information

CVE: CVE-2025-49734, CVE-2025-53796, CVE-2025-53797, CVE-2025-53798, CVE-2025-53799, CVE-2025-53800, CVE-2025-53801, CVE-2025-53802, CVE-2025-53803, CVE-2025-53804, CVE-2025-53805, CVE-2025-53806, CVE-2025-53807, CVE-2025-53808, CVE-2025-53810, CVE-2025-54091, CVE-2025-54092, CVE-2025-54093, CVE-2025-54094, CVE-2025-54095, CVE-2025-54096, CVE-2025-54097, CVE-2025-54098, CVE-2025-54099, CVE-2025-54101, CVE-2025-54102, CVE-2025-54104, CVE-2025-54106, CVE-2025-54107, CVE-2025-54109, CVE-2025-54110, CVE-2025-54111, CVE-2025-54112, CVE-2025-54113, CVE-2025-54114, CVE-2025-54115, CVE-2025-54116, CVE-2025-54894, CVE-2025-54895, CVE-2025-54911, CVE-2025-54912, CVE-2025-54913, CVE-2025-54915, CVE-2025-54916, CVE-2025-54917, CVE-2025-54918, CVE-2025-54919, CVE-2025-55223, CVE-2025-55224, CVE-2025-55225, CVE-2025-55226, CVE-2025-55228, CVE-2025-55234, CVE-2025-55236

MSFT: MS25-5065306, MS25-5065432

MSKB: 5065306, 5065432