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High severity7.8NVD Advisory· Published Aug 17, 2020· Updated Jun 17, 2026

CVE-2020-1577

CVE-2020-1577

Description

An information disclosure vulnerability exists when DirectWrite improperly discloses the contents of its memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage. The security update addresses the vulnerability by correcting how DirectWrite 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/DirectWritellm-create

Patches

Vulnerability mechanics

References

1

News mentions

0

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