CVE-2021-40449

Win32k Elevation of Privilege Vulnerability

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html	Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449	Patch Vendor Advisory
http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html	Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1507::::::::
	cpe:2.3:o:microsoft:windows_10_1607::::::::
	cpe:2.3:o:microsoft:windows_10_1809::::::::
	cpe:2.3:o:microsoft:windows_10_1909::::::::
	cpe:2.3:o:microsoft:windows_10_2004::::::::
	cpe:2.3:o:microsoft:windows_10_20h2::::::::
	cpe:2.3:o:microsoft:windows_10_21h1::::::::
	cpe:2.3:o:microsoft:windows_11::::::::
	cpe:2.3:o:microsoft:windows_11_21h2::::::::
	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2004::::::::
	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_20h2::::::::

History

21 Nov 2024, 06:24

Type	Values Removed	Values Added
References	~~() http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html - Exploit, Third Party Advisory, VDB Entry~~	() http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html - Exploit, Third Party Advisory, VDB Entry
References	~~() https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449 - Patch, Vendor Advisory~~	() https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449 - Patch, Vendor Advisory

24 Jul 2024, 17:07

Type	Values Removed	Values Added
First Time		Microsoft windows 10 2004 Microsoft windows 10 21h1 Microsoft windows 11 21h2 Microsoft windows 10 1507 Microsoft windows 10 1909 Microsoft windows 10 20h2 Microsoft windows 10 1809 Microsoft windows 10 1607 Microsoft windows Server 20h2 Microsoft windows Server 2004
CPE	cpe:2.3:o:microsoft:windows_10:21h1:::::::* cpe:2.3:o:microsoft:windows_server:20h2:::::::* cpe:2.3:o:microsoft:windows_server_2016:2004:::::::* cpe:2.3:o:microsoft:windows_10:1909:::::::* cpe:2.3:o:microsoft:windows_10:2004:::::::* cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_10:1607:::::::* cpe:2.3:o:microsoft:windows_server_2016:-:::::::* cpe:2.3:o:microsoft:windows_10:1809:::::::* cpe:2.3:o:microsoft:windows_10:-:::::::* cpe:2.3:o:microsoft:windows_10:20h2:::::::*	cpe:2.3:o:microsoft:windows_10_1507:::::::: cpe:2.3:o:microsoft:windows_server_2016:::::::: cpe:2.3:o:microsoft:windows_10_1909:::::::: cpe:2.3:o:microsoft:windows_server_2019:::::::: cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_11_21h2:::::::: cpe:2.3:o:microsoft:windows_10_1809:::::::: cpe:2.3:o:microsoft:windows_10_21h1:::::::: cpe:2.3:o:microsoft:windows_10_1607:::::::: cpe:2.3:o:microsoft:windows_10_20h2:::::::: cpe:2.3:o:microsoft:windows_server_20h2:::::::: cpe:2.3:o:microsoft:windows_server_2004:::::::: cpe:2.3:o:microsoft:windows_10_2004::::::::

08 Aug 2023, 14:21

Type	Values Removed	Values Added
CWE	~~CWE-269~~	CWE-416

01 Aug 2023, 23:15

Type	Values Removed	Values Added
Summary	~~Win32k Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-40450, CVE-2021-41357.~~	Win32k Elevation of Privilege Vulnerability

23 May 2022, 17:42

Type	Values Removed	Values Added
CPE	cpe:2.3:o:microsoft:windows_server:2004:::::::*	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*

30 Nov 2021, 20:18

Type	Values Removed	Values Added
CPE	cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_10:2004::::::x86: cpe:2.3:o:microsoft:windows_10:1809::::::arm64: cpe:2.3:o:microsoft:windows_10:1809::::::x64: cpe:2.3:o:microsoft:windows_10:21h1::::::x64: cpe:2.3:o:microsoft:windows_10:20h2::::::x64: cpe:2.3:o:microsoft:windows_10:1909::::::x86: cpe:2.3:o:microsoft:windows_8.1:-::::::x86: cpe:2.3:o:microsoft:windows_10:-::::::x86: cpe:2.3:o:microsoft:windows_7:-:sp1:::::x86:* cpe:2.3:o:microsoft:windows_10:21h1::::::x86: cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x64:* cpe:2.3:o:microsoft:windows_7:-:sp1:::::x64:* cpe:2.3:o:microsoft:windows_10:1809::::::x86: cpe:2.3:o:microsoft:windows_10:21h1::::::arm64: cpe:2.3:o:microsoft:windows_10:20h2::::::arm64: cpe:2.3:o:microsoft:windows_10:1607::::::x86: cpe:2.3:o:microsoft:windows_10:1909::::::arm64: cpe:2.3:o:microsoft:windows_10:1909::::::x64: cpe:2.3:o:microsoft:windows_10:2004::::::x64: cpe:2.3:o:microsoft:windows_10:20h2::::::x86: cpe:2.3:o:microsoft:windows_10:2004::::::arm64: cpe:2.3:o:microsoft:windows_11:-::::::x64: cpe:2.3:o:microsoft:windows_11:-::::::arm64: cpe:2.3:o:microsoft:windows_10:1607::::::x64: cpe:2.3:o:microsoft:windows_10:-::::::x64: cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x86:* cpe:2.3:o:microsoft:windows_8.1:-::::::x64:	cpe:2.3:o:microsoft:windows_7:-:sp1:::::: cpe:2.3:o:microsoft:windows_10:-:::::::* cpe:2.3:o:microsoft:windows_10:1607:::::::* cpe:2.3:o:microsoft:windows_10:20h2:::::::* cpe:2.3:o:microsoft:windows_11:::::::: cpe:2.3:o:microsoft:windows_8.1:-:::::::* cpe:2.3:o:microsoft:windows_server_2022:-:::::::* cpe:2.3:o:microsoft:windows_10:2004:::::::* cpe:2.3:o:microsoft:windows_10:1909:::::::* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::: cpe:2.3:o:microsoft:windows_10:21h1:::::::* cpe:2.3:o:microsoft:windows_10:1809:::::::*
References	~~(MISC) http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html -~~	(MISC) http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html - Exploit, Third Party Advisory, VDB Entry

10 Nov 2021, 20:15

Type	Values Removed	Values Added
References		(MISC) http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html -

19 Oct 2021, 22:36

Type	Values Removed	Values Added
CPE		cpe:2.3:o:microsoft:windows_10:1809::::::x64: cpe:2.3:o:microsoft:windows_10:1607::::::x64: cpe:2.3:o:microsoft:windows_10:1909::::::arm64: cpe:2.3:o:microsoft:windows_10:20h2::::::x86: cpe:2.3:o:microsoft:windows_10:2004::::::x64: cpe:2.3:o:microsoft:windows_7:-:sp1:::::x64:* cpe:2.3:o:microsoft:windows_10:1607::::::x86: cpe:2.3:o:microsoft:windows_10:2004::::::x86: cpe:2.3:o:microsoft:windows_10:1909::::::x86: cpe:2.3:o:microsoft:windows_11:-::::::x64: cpe:2.3:o:microsoft:windows_10:21h1::::::arm64: cpe:2.3:o:microsoft:windows_10:21h1::::::x64: cpe:2.3:o:microsoft:windows_10:-::::::x64: cpe:2.3:o:microsoft:windows_10:1909::::::x64: cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:* cpe:2.3:o:microsoft:windows_8.1:-::::::x64: cpe:2.3:o:microsoft:windows_10:21h1::::::x86: cpe:2.3:o:microsoft:windows_8.1:-::::::x86: cpe:2.3:o:microsoft:windows_11:-::::::arm64: cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x86:* cpe:2.3:o:microsoft:windows_10:1809::::::x86: cpe:2.3:o:microsoft:windows_10:20h2::::::x64: cpe:2.3:o:microsoft:windows_server:2004:::::::* cpe:2.3:o:microsoft:windows_7:-:sp1:::::x86:* cpe:2.3:o:microsoft:windows_server_2019:-:::::::* cpe:2.3:o:microsoft:windows_10:-::::::x86: cpe:2.3:o:microsoft:windows_10:1809::::::arm64: cpe:2.3:o:microsoft:windows_server_2012:-:::::::* cpe:2.3:o:microsoft:windows_server_2016:-:::::::* cpe:2.3:o:microsoft:windows_10:20h2::::::arm64: cpe:2.3:o:microsoft:windows_server_2012:r2:::::::* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x64:* cpe:2.3:o:microsoft:windows_server:20h2:::::::* cpe:2.3:o:microsoft:windows_10:2004::::::arm64: cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
References	~~(MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449 -~~	(MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449 - Patch, Vendor Advisory
CWE		CWE-269
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.6 v3 : 7.8

13 Oct 2021, 01:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-10-13 01:15

Updated : 2025-03-13 16:36

NVD link : CVE-2021-40449

Mitre link : CVE-2021-40449

CVE.ORG link : CVE-2021-40449

JSON object : View

Products Affected

microsoft

windows_server_2019
windows_server_2016
windows_10_1607
windows_server_20h2
windows_11
windows_10_20h2
windows_rt_8.1
windows_10_1809
windows_10_1507
windows_server_2012
windows_server_2008
windows_10_1909
windows_10_21h1
windows_server_2022
windows_server_2004
windows_11_21h2
windows_8.1
windows_7
windows_10_2004

CWE

CWE-416

Use After Free

7.8 /10