Detections
Analytics

KB5078734: Windows Server version 23H2 Security Update (March 2026)

high Nessus Plugin ID 301767

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5078734. It is, therefore, affected by multiple vulnerabilities

 - Use after free in Windows Print Spooler Components allows an authorized attacker to execute code over a network. (CVE-2026-23669)

 - Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally. (CVE-2026-24283)

 - Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
 (CVE-2026-24285)
- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands.
 (CVE-2026-26111)

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 5078734

See Also

https://support.microsoft.com/help/5078734

Plugin Details

Severity: High

ID: 301767

File Name: smb_nt_ms26_mar_5078734.nasl

Version: 1.1

Type: local

Agent: windows

Published: 3/10/2026

Updated: 3/10/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

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-2026-26111

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:windows_server_23h2

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 3/10/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-23668, CVE-2026-23669, CVE-2026-23671, CVE-2026-23672, CVE-2026-23673, CVE-2026-23674, CVE-2026-24283, CVE-2026-24285, CVE-2026-24287, CVE-2026-24289, CVE-2026-24290, CVE-2026-24291, CVE-2026-24292, CVE-2026-24293, CVE-2026-24294, CVE-2026-24295, CVE-2026-24296, CVE-2026-25165, CVE-2026-25166, CVE-2026-25168, CVE-2026-25169, CVE-2026-25170, CVE-2026-25171, CVE-2026-25172, CVE-2026-25173, CVE-2026-25174, CVE-2026-25175, CVE-2026-25176, CVE-2026-25177, CVE-2026-25178, CVE-2026-25179, CVE-2026-25180, CVE-2026-25181, CVE-2026-25185, CVE-2026-25186, CVE-2026-25187, CVE-2026-25188, CVE-2026-25190, CVE-2026-26111, CVE-2026-26128, CVE-2026-26132

MSFT: MS26-5078734

MSKB: 5078734