CVE-2021-40449

KEV
Published: Ott 13, 2021 Last Modified: Ott 30, 2025
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
MEDIUM 4,6
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

Win32k Elevation of Privilege Vulnerability

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9189
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

416

Use After Free

Stable
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Confidentiality
Potential Impacts:
Modify Memory Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
Operating System

Windows 10 1507 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1507
Version Range Affected
To 10.0.10240.19086 (exclusive)
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 20H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 20H2
Version Range Affected
To 10.0.19042.1288 (exclusive)
cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1909 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1909
Version Range Affected
To 10.0.18363.1854 (exclusive)
cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 21H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11 21H2
Version Range Affected
To 10.0.22000.258 (exclusive)
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2016 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2016
Version Range Affected
To 10.0.14393.4704 (exclusive)
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2004 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2004
Version Range Affected
To 10.0.19041.1288 (exclusive)
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2008 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2008
Version -
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2022 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2022
Version Range Affected
To 10.0.20348.288 (exclusive)
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2019 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2019
Version Range Affected
To 10.0.17763.2237 (exclusive)
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2012 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2012
Version -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2008 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2008
Version r2
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 11 by Microsoft

Product Information
Vendor Microsoft
Product Windows 11
cpe:2.3:o:microsoft:windows_11:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 21H1 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 21H1
Version Range Affected
To 10.0.19041.1288 (exclusive)
cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 7 by Microsoft

Product Information
Vendor Microsoft
Product Windows 7
Version -
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Rt 8.1 by Microsoft

Product Information
Vendor Microsoft
Product Windows Rt 8.1
Version -
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1607 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1607
Version Range Affected
To 10.0.14393.4704 (exclusive)
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 2004 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 2004
Version Range Affected
To 10.0.19041.1288 (exclusive)
cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 1809 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 1809
Version Range Affected
To 10.0.17763.2237 (exclusive)
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows Server 2012 by Microsoft

Product Information
Vendor Microsoft
Product Windows Server 2012
Version r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 10 20H2 by Microsoft

Product Information
Vendor Microsoft
Product Windows 10 20H2
Version Range Affected
To 10.0.19041.1288 (exclusive)
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Windows 8.1 by Microsoft

Product Information
Vendor Microsoft
Product Windows 8.1
Version -
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
http://packetstormsecurity.com/files/164926/Win32k-NtGdiRes…
http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-…
https://portal.msrc.microsoft.com/en-US/security-guidance/a…
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-404…
http://packetstormsecurity.com/files/164926/Win32k-NtGdiRes…
http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-…
https://portal.msrc.microsoft.com/en-US/security-guidance/a…
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-404…