Windows Hard Link in Windows Defender antimalware platform - CVE-2020-0835

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Main Vulnerability Database Vulnerabilities #VU26881

Windows Hard Link in Windows Defender antimalware platform - CVE-2020-0835

Published: April 14, 2020


Vulnerability identifier: #VU26881
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-0835
CWE-ID: CWE-65
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows Defender antimalware platform

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Windows Defender antimalware platform improperly handles hard links. A local user can run a specially crafted application and overwrite a targeted file leading to an elevated status. 


How to mitigate CVE-2020-0835

Install update from vendor's website.

Sources