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Unrated severityNVD Advisory· Published Sep 11, 2020· Updated Aug 4, 2024

Win32k Elevation of Privilege Vulnerability

CVE-2020-1245

Description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how Win32k handles objects in memory.

Affected products

14
  • Microsoft/Windows 10 1909v54 versions
    cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*+ 3 more
    • cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*range: 10.0.0
  • Microsoft/Windows 10 1607v5
    cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
    Range: 10.0.0
  • Microsoft/Windows 10 1809v52 versions
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*range: 10.0.0
  • Microsoft/Windows 7v52 versions
    cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x64:*range: 6.1.0
    • cpe:2.3:o:microsoft:windows_7:*:sp1:*:*:*:*:x86:*range: 6.1.0
  • Microsoft/Windows 8.1v5
    cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:x86:*
    Range: 6.3.0
  • Microsoft/Windows Server 2012v5
    cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
    Range: 6.2.0
  • Microsoft/Windows Server 2016v5
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
    Range: 10.0.0
  • Microsoft/Windows Server 2019v5
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
    Range: 10.0.0
  • Microsoft/Windowsllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

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