Detections
Analytics

KB5099445: Windows Server 2012 Security Update (July 2026)

critical Nessus Plugin ID 326854

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5099445. It is, therefore, affected by multiple vulnerabilities

 - Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network. (CVE-2026-58594)

 - Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally. (CVE-2026-54992)

 - Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally. (CVE-2026-34346)

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 5099445

See Also

https://support.microsoft.com/help/5099445

Plugin Details

Severity: Critical

ID: 326854

File Name: smb_nt_ms26_jul_5099445.nasl

Version: 1.2

Type: Local

Agent: windows

Published: 7/14/2026

Updated: 7/15/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Percentile: 99.81

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: CVE-2026-58594

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 9.2

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

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

CVSS Score Source: CVE-2026-57092

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2012

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-34346, CVE-2026-40378, CVE-2026-40400, CVE-2026-42975, CVE-2026-44806, CVE-2026-49164, CVE-2026-49177, CVE-2026-49178, CVE-2026-49180, CVE-2026-49181, CVE-2026-49184, CVE-2026-49789, CVE-2026-49790, CVE-2026-49791, CVE-2026-49794, CVE-2026-49796, CVE-2026-49797, CVE-2026-49798, CVE-2026-49799, CVE-2026-49801, CVE-2026-49803, CVE-2026-49804, CVE-2026-49805, CVE-2026-50294, CVE-2026-50297, CVE-2026-50298, CVE-2026-50304, CVE-2026-50306, CVE-2026-50308, CVE-2026-50309, CVE-2026-50311, CVE-2026-50312, CVE-2026-50313, CVE-2026-50321, CVE-2026-50325, CVE-2026-50328, CVE-2026-50330, CVE-2026-50332, CVE-2026-50334, CVE-2026-50341, CVE-2026-50344, CVE-2026-50346, CVE-2026-50347, CVE-2026-50351, CVE-2026-50352, CVE-2026-50355, CVE-2026-50359, CVE-2026-50365, CVE-2026-50366, CVE-2026-50368, CVE-2026-50369, CVE-2026-50370, CVE-2026-50371, CVE-2026-50372, CVE-2026-50376, CVE-2026-50380, CVE-2026-50386, CVE-2026-50387, CVE-2026-50388, CVE-2026-50390, CVE-2026-50391, CVE-2026-50397, CVE-2026-50400, CVE-2026-50402, CVE-2026-50405, CVE-2026-50411, CVE-2026-50412, CVE-2026-50417, CVE-2026-50419, CVE-2026-50422, CVE-2026-50426, CVE-2026-50431, CVE-2026-50433, CVE-2026-50439, CVE-2026-50444, CVE-2026-50445, CVE-2026-50447, CVE-2026-50448, CVE-2026-50451, CVE-2026-50453, CVE-2026-50455, CVE-2026-50456, CVE-2026-50461, CVE-2026-50462, CVE-2026-50470, CVE-2026-50471, CVE-2026-50474, CVE-2026-50475, CVE-2026-50476, CVE-2026-50477, CVE-2026-50480, CVE-2026-50482, CVE-2026-50485, CVE-2026-50489, CVE-2026-50490, CVE-2026-50491, CVE-2026-50494, CVE-2026-50496, CVE-2026-50497, CVE-2026-50498, CVE-2026-50500, CVE-2026-50502, CVE-2026-50504, CVE-2026-50505, CVE-2026-50518, CVE-2026-50647, CVE-2026-50667, CVE-2026-50669, CVE-2026-50673, CVE-2026-50683, CVE-2026-50684, CVE-2026-50685, CVE-2026-50688, CVE-2026-50690, CVE-2026-50694, CVE-2026-50695, CVE-2026-50697, CVE-2026-54107, CVE-2026-54115, CVE-2026-54119, CVE-2026-54121, CVE-2026-54122, CVE-2026-54126, CVE-2026-54128, CVE-2026-54982, CVE-2026-54983, CVE-2026-54989, CVE-2026-54992, CVE-2026-54995, CVE-2026-54997, CVE-2026-54999, CVE-2026-55003, CVE-2026-55004, CVE-2026-56155, CVE-2026-56159, CVE-2026-56175, CVE-2026-56176, CVE-2026-56182, CVE-2026-56186, CVE-2026-56188, CVE-2026-56189, CVE-2026-56190, CVE-2026-56194, CVE-2026-56648, CVE-2026-56649, CVE-2026-56650, CVE-2026-57083, CVE-2026-57084, CVE-2026-57085, CVE-2026-57089, CVE-2026-57092, CVE-2026-57093, CVE-2026-57095, CVE-2026-57097, CVE-2026-57976, CVE-2026-57982, CVE-2026-58531, CVE-2026-58532, CVE-2026-58533, CVE-2026-58535, CVE-2026-58539, CVE-2026-58540, CVE-2026-58545, CVE-2026-58546, CVE-2026-58594, CVE-2026-58608, CVE-2026-58609, CVE-2026-58614, CVE-2026-58627, CVE-2026-58629, CVE-2026-58637, CVE-2026-58638, CVE-2026-58640

MSFT: MS26-5099445

MSKB: 5099445