Detections
Analytics

KB5120386: Windows Server 2012 Security Update (August 2026)

critical Nessus Plugin ID 334606

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5120386. It is, therefore, affected by multiple vulnerabilities

 - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
 (CVE-2026-62878)

 - Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network. (CVE-2026-62893)

 - Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a network. (CVE-2026-65791)

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 5120386

See Also

https://support.microsoft.com/help/5120386

Plugin Details

Severity: Critical

ID: 334606

File Name: smb_nt_ms26_aug_5120386.nasl

Version: 1.1

Type: Local

Agent: windows

Published: 8/11/2026

Updated: 8/11/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS v2

Risk Factor: Critical

Base Score: 10

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

CVSS Score Source: CVE-2026-62878

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2012

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Patch Publication Date: 8/11/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-49179, CVE-2026-50472, CVE-2026-54984, CVE-2026-59122, CVE-2026-59127, CVE-2026-59128, CVE-2026-59130, CVE-2026-59131, CVE-2026-59132, CVE-2026-59134, CVE-2026-59135, CVE-2026-59136, CVE-2026-59137, CVE-2026-59138, CVE-2026-61345, CVE-2026-61347, CVE-2026-61348, CVE-2026-61349, CVE-2026-61350, CVE-2026-61352, CVE-2026-61353, CVE-2026-61360, CVE-2026-61363, CVE-2026-61364, CVE-2026-61365, CVE-2026-61366, CVE-2026-61367, CVE-2026-61918, CVE-2026-61920, CVE-2026-61921, CVE-2026-61924, CVE-2026-61925, CVE-2026-61926, CVE-2026-61937, CVE-2026-61939, CVE-2026-62692, CVE-2026-62698, CVE-2026-62699, CVE-2026-62700, CVE-2026-62701, CVE-2026-62709, CVE-2026-62711, CVE-2026-62712, CVE-2026-62714, CVE-2026-62715, CVE-2026-62716, CVE-2026-62717, CVE-2026-62718, CVE-2026-62719, CVE-2026-62720, CVE-2026-62721, CVE-2026-62723, CVE-2026-62724, CVE-2026-62725, CVE-2026-62726, CVE-2026-62728, CVE-2026-62729, CVE-2026-62730, CVE-2026-62732, CVE-2026-62733, CVE-2026-62734, CVE-2026-62735, CVE-2026-62738, CVE-2026-62740, CVE-2026-62741, CVE-2026-62742, CVE-2026-62743, CVE-2026-62745, CVE-2026-62746, CVE-2026-62748, CVE-2026-62750, CVE-2026-62752, CVE-2026-62753, CVE-2026-62754, CVE-2026-62755, CVE-2026-62757, CVE-2026-62758, CVE-2026-62761, CVE-2026-62768, CVE-2026-62769, CVE-2026-62770, CVE-2026-62773, CVE-2026-62776, CVE-2026-62778, CVE-2026-62781, CVE-2026-62784, CVE-2026-62785, CVE-2026-62786, CVE-2026-62787, CVE-2026-62790, CVE-2026-62792, CVE-2026-62793, CVE-2026-62795, CVE-2026-62796, CVE-2026-62797, CVE-2026-62800, CVE-2026-62803, CVE-2026-62807, CVE-2026-62812, CVE-2026-62814, CVE-2026-62816, CVE-2026-62818, CVE-2026-62819, CVE-2026-62822, CVE-2026-62823, CVE-2026-62824, CVE-2026-62876, CVE-2026-62877, CVE-2026-62878, CVE-2026-62880, CVE-2026-62881, CVE-2026-62883, CVE-2026-62885, CVE-2026-62887, CVE-2026-62889, CVE-2026-62890, CVE-2026-62893, CVE-2026-62908, CVE-2026-65662, CVE-2026-65671, CVE-2026-65679, CVE-2026-65774, CVE-2026-65775, CVE-2026-65784, CVE-2026-65790, CVE-2026-65791, CVE-2026-65794, CVE-2026-65796, CVE-2026-65797, CVE-2026-65798, CVE-2026-65799, CVE-2026-65814, CVE-2026-66799, CVE-2026-68819, CVE-2026-68820, CVE-2026-70304, CVE-2026-70307, CVE-2026-70330, CVE-2026-70344, CVE-2026-70345, CVE-2026-70346, CVE-2026-70347

MSFT: MS26-5120386

MSKB: 5120386