KB5004249: Windows 10 1507 LTS Security Update (July 2021)

high Nessus Plugin ID 151596
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote Windows host is affected by multiple vulnerabilities.


The remote Windows host is missing security update 5004249. It is, therefore, affected by multiple vulnerabilities.


Apply Cumulative Update 5004249

See Also

Plugin Details

Severity: High

ID: 151596

File Name: smb_nt_ms21_jul_5004249.nasl

Version: 1.8

Type: local

Agent: windows

Published: 7/13/2021

Updated: 11/30/2021

Dependencies: smb_check_rollup.nasl, smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

CVSS Score Source: CVE-2021-34448


Risk Factor: Critical

Score: 9.2


Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C


Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2021

Vulnerability Publication Date: 7/13/2021

Reference Information

CVE: CVE-2021-31183, CVE-2021-31979, CVE-2021-33740, CVE-2021-33749, CVE-2021-33750, CVE-2021-33752, CVE-2021-33756, CVE-2021-33757, CVE-2021-33761, CVE-2021-33763, CVE-2021-33765, CVE-2021-33771, CVE-2021-33773, CVE-2021-33782, CVE-2021-33783, CVE-2021-33788, CVE-2021-34439, CVE-2021-34440, CVE-2021-34441, CVE-2021-34446, CVE-2021-34447, CVE-2021-34448, CVE-2021-34454, CVE-2021-34455, CVE-2021-34456, CVE-2021-34457, CVE-2021-34459, CVE-2021-34462, CVE-2021-34476, CVE-2021-34491, CVE-2021-34492, CVE-2021-34493, CVE-2021-34496, CVE-2021-34497, CVE-2021-34498, CVE-2021-34500, CVE-2021-34504, CVE-2021-34507, CVE-2021-34511, CVE-2021-34512, CVE-2021-34514, CVE-2021-34516

MSKB: 5004249

MSFT: MS21-5004249

IAVA: 2021-A-0319-S, 2021-A-0318-S