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High severity7.1NVD Advisory· Published Oct 16, 2020· Updated Jun 17, 2026

CVE-2020-16877

CVE-2020-16877

Description

An elevation of privilege vulnerability exists when Microsoft Windows improperly handles reparse points. An attacker who successfully exploited this vulnerability could overwrite or delete a targeted file that would normally require elevated permissions. 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 overwrite or delete files. The security update addresses the vulnerability by correcting how Windows handles reparse points.

Affected products

9
  • Microsoft/Windows 10 1909v54 versions
    cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*+ 3 more
    • cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
  • Microsoft/Windows 10 1809v5
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
    Range: 10.0.0
  • Microsoft/Windows Server 20163 versions
    cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
  • Microsoft/Windowsllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

0

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