Detections
Analytics

KB5083768: Windows 11 Version 26H1 Security Update (April 2026)

critical Nessus Plugin ID 306439

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5083768. It is, therefore, affected by multiple vulnerabilities

 - Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
 (CVE-2026-33824)

 - Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network. (CVE-2026-32225)

 - Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
 (CVE-2026-32157)

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 5083768

See Also

https://support.microsoft.com/help/5083768

Plugin Details

Severity: Critical

ID: 306439

File Name: smb_nt_ms26_apr_5083768.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 4/14/2026

Updated: 4/14/2026

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-2026-33824

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_11_26h1

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2026

Vulnerability Publication Date: 4/14/2026

Reference Information

CVE: CVE-2026-20806, CVE-2026-20928, CVE-2026-23670, CVE-2026-25184, CVE-2026-25250, CVE-2026-26151, CVE-2026-26152, CVE-2026-26153, CVE-2026-26155, CVE-2026-26156, CVE-2026-26159, CVE-2026-26160, CVE-2026-26161, CVE-2026-26162, CVE-2026-26163, CVE-2026-26165, CVE-2026-26166, CVE-2026-26167, CVE-2026-26168, CVE-2026-26169, CVE-2026-26170, CVE-2026-26172, CVE-2026-26173, CVE-2026-26174, CVE-2026-26175, CVE-2026-26176, CVE-2026-26177, CVE-2026-26179, CVE-2026-26180, CVE-2026-26181, CVE-2026-26182, CVE-2026-26184, CVE-2026-27906, CVE-2026-27907, CVE-2026-27908, CVE-2026-27909, CVE-2026-27910, CVE-2026-27911, CVE-2026-27914, CVE-2026-27915, CVE-2026-27916, CVE-2026-27917, CVE-2026-27918, CVE-2026-27919, CVE-2026-27920, CVE-2026-27921, CVE-2026-27922, CVE-2026-27923, CVE-2026-27925, CVE-2026-27926, CVE-2026-27927, CVE-2026-27929, CVE-2026-27930, CVE-2026-27931, CVE-2026-32068, CVE-2026-32069, CVE-2026-32070, CVE-2026-32071, CVE-2026-32072, CVE-2026-32073, CVE-2026-32074, CVE-2026-32075, CVE-2026-32076, CVE-2026-32077, CVE-2026-32078, CVE-2026-32079, CVE-2026-32081, CVE-2026-32082, CVE-2026-32083, CVE-2026-32084, CVE-2026-32085, CVE-2026-32086, CVE-2026-32087, CVE-2026-32088, CVE-2026-32089, CVE-2026-32090, CVE-2026-32091, CVE-2026-32093, CVE-2026-32149, CVE-2026-32150, CVE-2026-32151, CVE-2026-32152, CVE-2026-32153, CVE-2026-32154, CVE-2026-32156, CVE-2026-32157, CVE-2026-32158, CVE-2026-32159, CVE-2026-32160, CVE-2026-32162, CVE-2026-32163, CVE-2026-32164, CVE-2026-32165, CVE-2026-32181, CVE-2026-32183, CVE-2026-32195, CVE-2026-32202, CVE-2026-32212, CVE-2026-32214, CVE-2026-32215, CVE-2026-32216, CVE-2026-32217, CVE-2026-32218, CVE-2026-32219, CVE-2026-32220, CVE-2026-32221, CVE-2026-32222, CVE-2026-32223, CVE-2026-32224, CVE-2026-32225, CVE-2026-33096, CVE-2026-33098, CVE-2026-33100, CVE-2026-33101, CVE-2026-33104, CVE-2026-33824, CVE-2026-33827, CVE-2026-33829

MSFT: MS26-5083768

MSKB: 5083768