CVE-2020-0840

HIGH

Windows - Elevation of Privilege via Hard Link Handling

Title source: llm

Description

An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0841, CVE-2020-0849, CVE-2020-0896.

References (1)

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0840

Scores

CVSS v3 7.8

EPSS 0.0088

EPSS Percentile 55.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published

Products (15)

microsoft/windows_10

microsoft/windows_10 1607

microsoft/windows_10 1709

microsoft/windows_10 1803

microsoft/windows_10 1809

microsoft/windows_10 1903

microsoft/windows_10 1909

microsoft/windows_8.1

microsoft/windows_rt_8.1

microsoft/windows_server_2012 r2

... and 5 more

Published Mar 12, 2020

Tracked Since Feb 18, 2026