Vulnerability-Lookup

BDU:2021-05340

Vulnerability from fstec - Published: 08.06.2021

Title

Уязвимость операционной системы Windows, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю выполнить произвольный код

Description

Уязвимость операционной системы Windows связана с выходом операции за границы буфера в памяти Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, выполнить произвольный код

Severity ?


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

Vendor

Microsoft Corp

Software Name

Windows 7 Service Pack 1, Windows Server 2008 Service Pack 2, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows Server 2008 R2 Service Pack 1, Windows 10, Windows 10 1607, Windows Server 2016, Windows RT 8.1, Windows 10 1809, Windows Server 2019, Windows 10 1909, Windows 10 2004, Windows 10 20H2, Windows 10 21H1

Software Version

- (Windows 7 Service Pack 1), - (Windows Server 2008 Service Pack 2), - (Windows 8.1), - (Windows Server 2012), - (Windows Server 2012 R2), - (Windows Server 2008 R2 Service Pack 1), - (Windows 10), - (Windows 10 1607), - (Windows Server 2016), - (Windows RT 8.1), - (Windows 10 1809), - (Windows Server 2019), - (Windows 10 1909), - (Windows 10 2004), - (Windows 10 20H2), - (Windows 10 21H1)

Possible Mitigations

Использование рекомендаций: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742

Reference

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742 https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv

CWE

CWE-119

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Microsoft Corp",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "- (Windows 7 Service Pack 1), - (Windows Server 2008 Service Pack 2), - (Windows 8.1), - (Windows Server 2012), - (Windows Server 2012 R2), - (Windows Server 2008 R2 Service Pack 1), - (Windows 10), - (Windows 10 1607), - (Windows Server 2016), - (Windows RT 8.1), - (Windows 10 1809), - (Windows Server 2019), - (Windows 10 1909), - (Windows 10 2004), - (Windows 10 20H2), - (Windows 10 21H1)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\nhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "08.06.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "24.09.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "10.11.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-05340",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2021-33742",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Windows 7 Service Pack 1, Windows Server 2008 Service Pack 2, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows Server 2008 R2 Service Pack 1, Windows 10, Windows 10 1607, Windows Server 2016, Windows RT 8.1, Windows 10 1809, Windows Server 2019, Windows 10 1909, Windows 10 2004, Windows 10 20H2, Windows 10 21H1",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Microsoft Corp Windows 7 Service Pack 1 - 64-bit, Microsoft Corp Windows Server 2008 Service Pack 2 - 32-bit, Microsoft Corp Windows 7 Service Pack 1 - 32-bit, Microsoft Corp Windows 8.1 - 64-bit, Microsoft Corp Windows 8.1 - 32-bit, Microsoft Corp Windows Server 2008 Service Pack 2 - 64-bit, Microsoft Corp Windows Server 2012 - , Microsoft Corp Windows Server 2012 R2 - , Microsoft Corp Windows Server 2008 R2 Service Pack 1 - 64-bit, Microsoft Corp Windows 10 - 64-bit, Microsoft Corp Windows 10 - 32-bit, Microsoft Corp Windows 10 1607 - 64-bit, Microsoft Corp Windows 10 1607 - 32-bit, Microsoft Corp Windows Server 2016 - , Microsoft Corp Windows RT 8.1 - , Microsoft Corp Windows 10 1809 - 64-bit, Microsoft Corp Windows 10 1809 - 32-bit, Microsoft Corp Windows Server 2019 - , Microsoft Corp Windows 10 1809 - ARM64, Microsoft Corp Windows 10 1909 - 32-bit, Microsoft Corp Windows 10 1909 - 64-bit, Microsoft Corp Windows 10 1909 - ARM64, Microsoft Corp Windows 10 2004 - 32-bit, Microsoft Corp Windows 10 2004 - 64-bit, Microsoft Corp Windows 10 2004 - ARM64, Microsoft Corp Windows 10 20H2 - ARM64, Microsoft Corp Windows 10 20H2 - 32-bit, Microsoft Corp Windows 10 20H2 - 64-bit, Microsoft Corp Windows 10 21H1 - 32-bit, Microsoft Corp Windows 10 21H1 - 64-bit, Microsoft Corp Windows 10 21H1 - ARM64",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Windows, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0432\u044b\u0445\u043e\u0434\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0412\u044b\u0445\u043e\u0434 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438 (CWE-119)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Windows \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0432\u044b\u0445\u043e\u0434\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438 \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33742\nhttps://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-119",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,3)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,8)"
}

CVE-2021-33742 (GCVE-0-2021-33742)

Vulnerability from cvelistv5 – Published: 2021-06-08 22:46 – Updated: 2025-10-21 23:25

Title

Windows MSHTML Platform Remote Code Execution Vulnerability

Summary

Windows MSHTML Platform Remote Code Execution Vulnerability

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE

Remote Code Execution

Assigner

microsoft

References

URL

Tags

https://portal.msrc.microsoft.com/en-US/security-…

x_refsource_MISC

Impacted products

Vendor

Product

Version

Microsoft

Windows 10 Version 1809

Affected: 10.0.0 , < 10.0.17763.1999 (custom)
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x86:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:arm64:*

Microsoft	Windows Server 2019	Affected: 10.0.0 , < 10.0.17763.1999 (custom) cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.1999:::::::*
Microsoft	Windows 10 Version 1909	Affected: 10.0.0 , < 10.0.18363.1621 (custom) cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621::::::x86: cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621::::::x64: cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1621::::::x64:
Microsoft	Windows 10 Version 21H1	Affected: 10.0.0 , < 10.0.19043.1052 (custom) cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052::::::x64: cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052::::::arm64: cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052::::::x86:
Microsoft	Windows 10 Version 2004	Affected: 10.0.0 , < 10.0.19041.1052 (custom) cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1052::::::x64:
Microsoft	Windows 10 Version 20H2	Affected: 10.0.0 , < 10.0.19042.1052 (custom) cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052::::::x86: cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1052::::::arm64:
Microsoft	Windows 10 Version 1507	Affected: 10.0.0 , < 10.0.10240.18967 (custom) cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967::::::x86: cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967::::::x64:
Microsoft	Windows 10 Version 1607	Affected: 10.0.0 , < 10.0.14393.4467 (custom) cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467::::::x86: cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467::::::x64:
Microsoft	Windows Server 2016	Affected: 10.0.0 , < 10.0.14393.4467 (custom) cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4467:::::::*
Microsoft	Windows 7	Affected: 6.1.0 , < 6.1.7601.25632 (custom) Affected: 6.1.0 , < publication (custom) cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:::::x86:* cpe:2.3:o:microsoft:windows_7::sp1:::::x86:
Microsoft	Windows 7 Service Pack 1	Affected: 6.1.0 , < 6.1.7601.25632 (custom) Affected: 6.1.0 , < publication (custom) cpe:2.3:o:microsoft:windows_7:6.1.7601.25632:sp1:::::x64:* cpe:2.3:o:microsoft:windows_7::sp1:::::x64:
Microsoft	Windows 8.1	Affected: 6.3.0 , < 6.3.9600.20045 (custom) Affected: 6.3.0 , < 1.0.0.0 (custom) cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045::::::x86: cpe:2.3:o:microsoft:windows_8.1:1.0.0.0::::::x86: cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045::::::x64: cpe:2.3:o:microsoft:windows_8.1:1.0.0.0::::::x64: cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20045:::::::*
Microsoft	Windows Server 2008 Service Pack 2	Affected: 6.0.0 , < 6.0.6003.21137 (custom) Affected: 6.0.0 , < publication (custom) cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137::::::x64: cpe:2.3:o:microsoft:windows_server_2008_sp2:::::::x64:*
Microsoft	Windows Server 2008 Service Pack 2	Affected: 6.0.0 , < 6.0.6003.21137 (custom) Affected: 6.0.0 , < publication (custom) cpe:2.3:o:microsoft:windows_server_2008_sp2:6.0.6003.21137::::::x86: cpe:2.3:o:microsoft:windows_server_2008_sp2:::::::x86:*
Microsoft	Windows Server 2008 R2 Service Pack 1	Affected: 6.1.0 , < 6.1.7601.25632 (custom) Affected: 6.1.0 , < publication (custom) cpe:2.3:o:microsoft:windows_server_2008_R2:6.1.7601.25632::::::x64: cpe:2.3:o:microsoft:windows_server_2008_R2:::::::x64:*
Microsoft	Windows Server 2012	Affected: 6.2.0 , < 6.2.9200.23372 (custom) Affected: 6.2.0 , < 1.0.0.0 (custom) cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23372::::::x64: cpe:2.3:o:microsoft:windows_server_2012:1.0.0.0::::::x64:
Microsoft	Windows Server 2012 R2	Affected: 6.3.0 , < 6.3.9600.20045 (custom) Affected: 6.3.0 , < 1.0.0.0 (custom) cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20045::::::x64: cpe:2.3:o:microsoft:windows_server_2012_R2:1.0.0.0::::::x64:

Date Public ?

2021-06-08 07:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:58:22.882Z",
          "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-2021-33742"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-33742",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-04T18:06:42.723897Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-33742"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
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            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:25:42.892Z",
          "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-2021-33742"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-03T00:00:00.000Z",
            "value": "CVE-2021-33742 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
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            "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.1999:*:*:*:*:*:arm64:*"
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          "platforms": [
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            "x64-based Systems",
            "ARM64-based Systems"
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          ],
          "product": "Windows Server 2019",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1621:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1621:*:*:*:*:*:x64:*"
          ],
          "platforms": [
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            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 10 Version 1909",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:arm64:*",
            "cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1052:*:*:*:*:*:x86:*"
          ],
          "platforms": [
            "x64-based Systems",
            "ARM64-based Systems",
            "32-bit Systems"
          ],
          "product": "Windows 10 Version 21H1",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
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        },
        {
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            "x64-based Systems"
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          "product": "Windows 10 Version 2004",
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              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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          ],
          "platforms": [
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            "ARM64-based Systems"
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          "product": "Windows 10 Version 20H2",
          "vendor": "Microsoft",
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              "versionType": "custom"
            }
          ]
        },
        {
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            "cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.18967:*:*:*:*:*:x64:*"
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          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Windows 10 Version 1507",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.10240.18967",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4467:*:*:*:*:*:x64:*"
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          "platforms": [
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        },
        {
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          "platforms": [
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          ],
          "product": "Windows Server 2016",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x86:*"
          ],
          "platforms": [
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          ],
          "product": "Windows 7",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
              "version": "6.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "publication",
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            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x64:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Windows 7 Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
            {
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            },
            {
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            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_8.1:1.0.0.0:*:*:*:*:*:x86:*",
            "cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20045:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_8.1:1.0.0.0:*:*:*:*:*:x64:*",
            "cpe:2.3:o:microsoft:windows_rt_8.1:6.3.9600.20045:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems",
            "ARM64-based Systems"
          ],
          "product": "Windows 8.1",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
              "version": "6.3.0",
              "versionType": "custom"
            },
            {
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              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:o:microsoft:windows_server_2008_sp2:*:*:*:*:*:*:x64:*"
          ],
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          ],
          "product": "Windows Server 2008 Service Pack 2",
          "vendor": "Microsoft",
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        {
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          ],
          "product": "Windows Server 2008 R2 Service Pack 1",
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          ]
        },
        {
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            "cpe:2.3:o:microsoft:windows_server_2012:1.0.0.0:*:*:*:*:*:x64:*"
          ],
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            "x64-based Systems"
          ],
          "product": "Windows Server 2012",
          "vendor": "Microsoft",
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            {
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              "versionType": "custom"
            },
            {
              "lessThan": "1.0.0.0",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "custom"
            }
          ]
        },
        {
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            "cpe:2.3:o:microsoft:windows_server_2012_R2:6.3.9600.20045:*:*:*:*:*:x64:*",
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          ],
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          ],
          "product": "Windows Server 2012 R2",
          "vendor": "Microsoft",
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            },
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              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-06-08T07:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Windows MSHTML Platform Remote Code Execution Vulnerability"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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": "Remote Code Execution",
              "lang": "en-US",
              "type": "Impact"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T14:55:49.884Z",
        "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-2021-33742"
        }
      ],
      "title": "Windows MSHTML Platform Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2021-33742",
    "datePublished": "2021-06-08T22:46:44.000Z",
    "dateReserved": "2021-05-28T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:25:42.892Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

BDU:2021-05340

CVE-2021-33742 (GCVE-0-2021-33742)

Tags

Sightings

Nomenclature