Detections
Analytics
KB5099414: Windows 11 version 23H2 Security Update (July 2026)
high Nessus Plugin ID 326855
Language:
Synopsis
The remote Windows host is affected by multiple vulnerabilities.Description
The remote Windows host is missing security update 5099414. It is, therefore, affected by multiple vulnerabilities- Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
(CVE-2026-50471)
- Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network. (CVE-2026-49172)
- Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally. (CVE-2026-42982)
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 5099414See Also
Plugin Details
Severity: High
ID: 326855
File Name: smb_nt_ms26_jul_5099414.nasl
Version: 1.4
Type: Local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 7/14/2026
Updated: 9/14/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.9
Percentile: 99.35
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-58640
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/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_23h2
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 7/14/2026
Vulnerability Publication Date: 7/14/2026
Reference Information
CVE: CVE-2026-33842, CVE-2026-34328, CVE-2026-34346, CVE-2026-34348, CVE-2026-40378, CVE-2026-42982, CVE-2026-42990, CVE-2026-44800, CVE-2026-48571, CVE-2026-48572, CVE-2026-49172, CVE-2026-50471, CVE-2026-56173, CVE-2026-58601, CVE-2026-58629, CVE-2026-58640