CVE-2021-40449 (GCVE-0-2021-40449)

Vulnerability from cvelistv5 – Published: 2021-10-13 00:26 – Updated: 2025-10-21 23:25
Title
Win32k Elevation of Privilege Vulnerability
Summary
Win32k Elevation of Privilege Vulnerability
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Elevation of Privilege
  • CWE-416 - Use After Free
Assigner
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1809 Affected: 10.0.0 , < 10.0.17763.2237 (custom)
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*
Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.0 , < 10.0.17763.2237 (custom)
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.0 , < 10.0.17763.2237 (custom)
    cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows 10 Version 1909 Affected: 10.0.0 , < 10.0.18363.1854 (custom)
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows 10 Version 21H1 Affected: 10.0.0 , < 10.0.19041.1288 (custom)
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:arm64:*
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x86:*
Create a notification for this product.
Microsoft Windows Server 2022 Affected: 10.0.0 , < 10.0.20348.288 (custom)
    cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows 10 Version 2004 Affected: 10.0.0 , < 10.0.19041.1288 (custom)
    cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server version 2004 Affected: 10.0.0 , < 10.0.19041.1288 (custom)
    cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows 10 Version 20H2 Affected: 10.0.0 , < 10.0.19041.1288 (custom)
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:arm64:*
Create a notification for this product.
Microsoft Windows Server version 20H2 Affected: 10.0.0 , < 10.0.19042.1288 (custom)
    cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows 11 version 21H2 Affected: 10.0.0 , < 10.0.22000.258 (custom)
    cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*
Create a notification for this product.
Microsoft Windows 10 Version 1507 Affected: 10.0.0 , < 10.0.10240.19086 (custom)
    cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows 10 Version 1607 Affected: 10.0.0 , < 10.0.14393.4704 (custom)
    cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.0 , < 10.0.14393.4704 (custom)
    cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.0 , < 10.0.14393.4704 (custom)
    cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows 7 Affected: 6.1.0 , < 6.1.7601.25740 (custom)
    cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x86:*
Create a notification for this product.
Microsoft Windows 7 Service Pack 1 Affected: 6.1.0 , < 6.1.7601.25740 (custom)
    cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows 8.1 Affected: 6.3.0 , < 6.3.9600.20144 (custom)
    cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20144:*:*:*:*:*:*:*
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.0 , < 6.0.6003.21251 (custom)
    cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) Affected: 6.0.0 , < 6.0.6003.21251 (custom)
    cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.0 , < 6.0.6003.21251 (custom)
    cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*
Create a notification for this product.
Microsoft Windows Server 2008 R2 Service Pack 1 Affected: 6.1.0 , < 6.1.7601.25740 (custom)
    cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) Affected: 6.0.0 , < 6.1.7601.25740 (custom)
    cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2012 Affected: 6.2.0 , < 6.2.9200.23490 (custom)
    cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.0 , < 6.2.9200.23490 (custom)
    cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.0 , < 6.3.9600.20144 (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*
Create a notification for this product.
Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.0 , < 6.3.9600.20144 (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*
Create a notification for this product.
Date Public
2021-10-12 07:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-40449

Status: Confirmed

Status Updated: 2021-11-17 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2021-11-17
Asserted: 2021-11-17

Scope
Notes: KEV entry: Microsoft Windows Win32k Privilege Escalation Vulnerability | Affected: Microsoft / Windows | Description: Unspecified vulnerability allows for an authenticated user to escalate privileges. | Required action: Apply updates per vendor instructions. | Due date: 2021-12-01 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-40449

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev


Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Windows
Due Date 2021-12-01
Date Added 2021-11-17
Vendorproject Microsoft
Vulnerabilityname Microsoft Windows Win32k Privilege Escalation Vulnerability
Knownransomwarecampaignuse Known

References

Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-40449

Status: Confirmed

Status Updated: 2021-11-17 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2021-11-17
Asserted: 2021-11-17

Scope
Notes: KEVIntel entry: Win32k Elevation of Privilege Vulnerability | Affected: Microsoft / Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2022, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) | CVSS: 7.8 (HIGH) | Used in malware: yes | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title Win32k Elevation of Privilege Vulnerability
Vendor Microsoft
Product Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2022, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Added Date 2021-11-17T00:00:00.000Z
Cvss Score 7.8
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False

References

Created: 2026-06-19 12:47 UTC | Updated: 2026-06-19 12:47 UTC
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:44:10.276Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-40449",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-07T14:36:14.212566Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-17",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:25:29.115Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-17T00:00:00.000Z",
            "value": "CVE-2021-40449 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 10 Version 1809",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.17763.2237",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2019",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.17763.2237",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2019 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.17763.2237",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 10 Version 1909",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.18363.1854",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:arm64:*",
            "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x86:*"
          ],
          "platforms": [
            "x64-based Systems",
            "ARM64-based Systems",
            "32-bit Systems"
          ],
          "product": "Windows 10 Version 21H1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.19041.1288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2022",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.20348.288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "ARM64-based Systems",
            "x64-based Systems"
          ],
          "product": "Windows 10 Version 2004",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.19041.1288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server version 2004",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.19041.1288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:arm64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 10 Version 20H2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.19041.1288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server version 20H2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.19042.1288",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*"
          ],
          "platforms": [
            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 11 version 21H2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.22000.258",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Windows 10 Version 1507",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.10240.19086",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Windows 10 Version 1607",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.14393.4704",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2016",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.14393.4704",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2016 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.14393.4704",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x86:*"
          ],
          "platforms": [
            "32-bit Systems"
          ],
          "product": "Windows 7",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.1.7601.25740",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows 7 Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.1.7601.25740",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20144:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 8.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.3.9600.20144",
              "status": "affected",
              "version": "6.3.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems"
          ],
          "product": "Windows Server 2008 Service Pack 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.0.6003.21251",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Windows Server 2008 Service Pack 2 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.0.6003.21251",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2008  Service Pack 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.0.6003.21251",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2008 R2 Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.1.7601.25740",
              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.1.7601.25740",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2012",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.2.9200.23490",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2012 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.2.9200.23490",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2012 R2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.3.9600.20144",
              "status": "affected",
              "version": "6.3.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows Server 2012 R2 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "6.3.9600.20144",
              "status": "affected",
              "version": "6.3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-10-12T07:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Win32k Elevation of Privilege Vulnerability"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Elevation of Privilege",
              "lang": "en-US",
              "type": "Impact"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T14:52:10.960Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html"
        }
      ],
      "title": "Win32k Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2021-40449",
    "datePublished": "2021-10-13T00:26:47.000Z",
    "dateReserved": "2021-09-02T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:25:29.115Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2021-40449",
      "cwes": "[\"CWE-416\"]",
      "dateAdded": "2021-11-17",
      "dueDate": "2021-12-01",
      "knownRansomwareCampaignUse": "Known",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-40449",
      "product": "Windows",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "Unspecified vulnerability allows for an authenticated user to escalate privileges.",
      "vendorProject": "Microsoft",
      "vulnerabilityName": "Microsoft Windows Win32k Privilege Escalation Vulnerability"
    },
    "epss": {
      "cve": "CVE-2021-40449",
      "date": "2026-06-19",
      "epss": "0.74129",
      "percentile": "0.99423"
    },
    "fkie_nvd": {
      "cisaActionDue": "2021-12-01",
      "cisaExploitAdd": "2021-11-17",
      "cisaRequiredAction": "Apply updates per vendor instructions.",
      "cisaVulnerabilityName": "Microsoft Windows Win32k Privilege Escalation Vulnerability",
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.10240.19086\", \"matchCriteriaId\": \"1BA46972-5882-48F6-B686-AEAA16D5BC9E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.14393.4704\", \"matchCriteriaId\": \"C72A940A-A2DC-4FA3-BCF2-7CD46E3B2150\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.17763.2237\", \"matchCriteriaId\": \"D03564D3-788A-4BD7-B717-B3681515A5BE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.18363.1854\", \"matchCriteriaId\": \"2DFF53D4-2910-4A58-81DF-6DDC01D2C523\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.19041.1288\", \"matchCriteriaId\": \"C995398E-B786-4AC7-B6D4-790ED8C68F8C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.19041.1288\", \"matchCriteriaId\": \"E2B1C8C4-E5E9-4B3E-8F01-618067D20EB0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.19041.1288\", \"matchCriteriaId\": \"B358BCA6-EF44-4378-B94B-F4BDD62FAF8C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_11:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B3017B3C-995F-4C9E-99C6-36714A8370BC\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.22000.258\", \"matchCriteriaId\": \"2FF279C0-02C7-4D60-85E8-9FB89492D738\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*\", \"matchCriteriaId\": \"C2B1C231-DE19-4B8F-A4AA-5B3A65276E46\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C6CE5198-C498-4672-AF4C-77AB4BE06C5C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.19041.1288\", \"matchCriteriaId\": \"486E7F23-6A3B-46AA-9F31-91EDF933B36A\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*\", \"matchCriteriaId\": \"5F422A8C-2C4E-42C8-B420-E0728037E15C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*\", \"matchCriteriaId\": \"AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A7DF96F8-BA6A-4780-9CA3-F719B3F81074\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DB18C4CE-5917-401E-ACF7-2747084FD36E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.14393.4704\", \"matchCriteriaId\": \"423A4CEB-CEE8-437C-BCC5-72310FC14E0E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.17763.2237\", \"matchCriteriaId\": \"A555704D-BB77-46A3-A0F9-62409FCC5F40\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.20348.288\", \"matchCriteriaId\": \"6E5F3F99-530D-4065-9133-9C251F89B406\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"10.0.19042.1288\", \"matchCriteriaId\": \"224FA1B7-84EF-435F-BBFA-33BD39C32595\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Win32k Elevation of Privilege Vulnerability\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad de Elevaci\\u00f3n de Privilegios en Win32k . Este ID de CVE es diferente de CVE-2021-40450, CVE-2021-41357\"}]",
      "id": "CVE-2021-40449",
      "lastModified": "2024-11-21T06:24:08.403",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"secure@microsoft.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}, {\"source\": \"nvd@nist.gov\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 4.6, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 3.9, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-10-13T01:15:09.703",
      "references": "[{\"url\": \"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\", \"source\": \"secure@microsoft.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\", \"source\": \"secure@microsoft.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "secure@microsoft.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-40449\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-10-13T01:15:09.703\",\"lastModified\":\"2026-06-17T04:06:56.427\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Win32k Elevation of Privilege Vulnerability\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de Elevaci\u00f3n de Privilegios en Win32k . Este ID de CVE es diferente de CVE-2021-40450, CVE-2021-41357\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1809\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\",\"ARM64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.17763.2237\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.17763.2237\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2019 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.17763.2237\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1909\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\",\"ARM64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.18363.1854\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 21H1\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:arm64:*\",\"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x86:*\"],\"platforms\":[\"x64-based Systems\",\"ARM64-based Systems\",\"32-bit Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.19041.1288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2022\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.20348.288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 2004\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*\"],\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.19041.1288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server version 2004\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.19041.1288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 20H2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:arm64:*\"],\"platforms\":[\"32-bit Systems\",\"ARM64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.19041.1288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server version 20H2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.19042.1288\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 11 version 21H2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*\"],\"platforms\":[\"x64-based Systems\",\"ARM64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.22000.258\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1507\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x64:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.10240.19086\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 10 Version 1607\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x64:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.14393.4704\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.14393.4704\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2016 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"10.0.0\",\"lessThan\":\"10.0.14393.4704\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 7\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x86:*\"],\"platforms\":[\"32-bit Systems\"],\"versions\":[{\"version\":\"6.1.0\",\"lessThan\":\"6.1.7601.25740\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 7 Service Pack 1\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.1.0\",\"lessThan\":\"6.1.7601.25740\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows 8.1\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x86:*\",\"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20144:*:*:*:*:*:*:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\",\"ARM64-based Systems\"],\"versions\":[{\"version\":\"6.3.0\",\"lessThan\":\"6.3.9600.20144\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2008 Service Pack 2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*\"],\"platforms\":[\"32-bit Systems\"],\"versions\":[{\"version\":\"6.0.0\",\"lessThan\":\"6.0.6003.21251\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2008 Service Pack 2 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*\",\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*\"],\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"6.0.0\",\"lessThan\":\"6.0.6003.21251\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2008  Service Pack 2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.0.0\",\"lessThan\":\"6.0.6003.21251\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2008 R2 Service Pack 1\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.1.0\",\"lessThan\":\"6.1.7601.25740\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2008 R2 Service Pack 1 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.0.0\",\"lessThan\":\"6.1.7601.25740\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.2.0\",\"lessThan\":\"6.2.9200.23490\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.2.0\",\"lessThan\":\"6.2.9200.23490\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 R2\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.3.0\",\"lessThan\":\"6.3.9600.20144\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Windows Server 2012 R2 (Server Core installation)\",\"cpes\":[\"cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*\"],\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"6.3.0\",\"lessThan\":\"6.3.9600.20144\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-02-07T14:36:14.212566Z\",\"id\":\"CVE-2021-40449\",\"options\":[{\"exploitation\":\"active\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"cisaExploitAdd\":\"2021-11-17\",\"cisaActionDue\":\"2021-12-01\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Microsoft Windows Win32k Privilege Escalation Vulnerability\",\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.10240.19086\",\"matchCriteriaId\":\"1BA46972-5882-48F6-B686-AEAA16D5BC9E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.14393.4704\",\"matchCriteriaId\":\"C72A940A-A2DC-4FA3-BCF2-7CD46E3B2150\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.17763.2237\",\"matchCriteriaId\":\"D03564D3-788A-4BD7-B717-B3681515A5BE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.18363.1854\",\"matchCriteriaId\":\"2DFF53D4-2910-4A58-81DF-6DDC01D2C523\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19041.1288\",\"matchCriteriaId\":\"C995398E-B786-4AC7-B6D4-790ED8C68F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19041.1288\",\"matchCriteriaId\":\"E2B1C8C4-E5E9-4B3E-8F01-618067D20EB0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19041.1288\",\"matchCriteriaId\":\"B358BCA6-EF44-4378-B94B-F4BDD62FAF8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_11:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B3017B3C-995F-4C9E-99C6-36714A8370BC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.22000.258\",\"matchCriteriaId\":\"2FF279C0-02C7-4D60-85E8-9FB89492D738\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*\",\"matchCriteriaId\":\"C2B1C231-DE19-4B8F-A4AA-5B3A65276E46\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C6CE5198-C498-4672-AF4C-77AB4BE06C5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19041.1288\",\"matchCriteriaId\":\"486E7F23-6A3B-46AA-9F31-91EDF933B36A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5F422A8C-2C4E-42C8-B420-E0728037E15C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*\",\"matchCriteriaId\":\"AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A7DF96F8-BA6A-4780-9CA3-F719B3F81074\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB18C4CE-5917-401E-ACF7-2747084FD36E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.14393.4704\",\"matchCriteriaId\":\"423A4CEB-CEE8-437C-BCC5-72310FC14E0E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.17763.2237\",\"matchCriteriaId\":\"A555704D-BB77-46A3-A0F9-62409FCC5F40\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.20348.288\",\"matchCriteriaId\":\"6E5F3F99-530D-4065-9133-9C251F89B406\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19042.1288\",\"matchCriteriaId\":\"224FA1B7-84EF-435F-BBFA-33BD39C32595\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T02:44:10.276Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-40449\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-07T14:36:14.212566Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-17\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-17T00:00:00.000Z\", \"value\": \"CVE-2021-40449 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40449\", \"tags\": [\"government-resource\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-07T14:35:06.852Z\"}}], \"cna\": {\"title\": \"Win32k Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2237:*:*:*:*:*:arm64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1809\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.17763.2237\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2019\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.17763.2237\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2237:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2019 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.17763.2237\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1854:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1854:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1909\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.18363.1854\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:arm64:*\", \"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19041.1288:*:*:*:*:*:x86:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 21H1\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19041.1288\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\", \"ARM64-based Systems\", \"32-bit Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.288:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2022\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.20348.288\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1288:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 2004\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19041.1288\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.1288:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server version 2004\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19041.1288\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19041.1288:*:*:*:*:*:arm64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 20H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19041.1288\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.1288:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server version 20H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.19042.1288\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.258:*:*:*:*:*:arm64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 11 version 21H2\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.22000.258\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19086:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1507\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.10240.19086\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4704:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 10 Version 1607\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4704\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4704\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4704:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2016 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.14393.4704\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x86:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 7\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1.0\", \"lessThan\": \"6.1.7601.25740\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_7:6.1.7601.25740:sp1:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 7 Service Pack 1\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1.0\", \"lessThan\": \"6.1.7601.25740\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x86:*\", \"cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20144:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20144:*:*:*:*:*:*:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows 8.1\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.0\", \"lessThan\": \"6.3.9600.20144\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\", \"ARM64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2008 Service Pack 2\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.0.0\", \"lessThan\": \"6.0.6003.21251\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x64:*\", \"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2008 Service Pack 2 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.0.0\", \"lessThan\": \"6.0.6003.21251\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21251:*:*:*:*:*:x86:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2008  Service Pack 2\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.0.0\", \"lessThan\": \"6.0.6003.21251\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2008 R2 Service Pack 1\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1.0\", \"lessThan\": \"6.1.7601.25740\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25740:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2008 R2 Service Pack 1 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.0.0\", \"lessThan\": \"6.1.7601.25740\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2.0\", \"lessThan\": \"6.2.9200.23490\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23490:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2.0\", \"lessThan\": \"6.2.9200.23490\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 R2\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.0\", \"lessThan\": \"6.3.9600.20144\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"cpes\": [\"cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20144:*:*:*:*:*:x64:*\"], \"vendor\": \"Microsoft\", \"product\": \"Windows Server 2012 R2 (Server Core installation)\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3.0\", \"lessThan\": \"6.3.9600.20144\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}], \"datePublic\": \"2021-10-12T07:00:00.000Z\", \"references\": [{\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40449\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-Local-Privilege-Escalation.html\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Win32k Elevation of Privilege Vulnerability\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"Impact\", \"description\": \"Elevation of Privilege\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2024-05-29T14:52:10.960Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-40449\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:25:29.115Z\", \"dateReserved\": \"2021-09-02T00:00:00.000Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2021-10-13T00:26:47.000Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…